Sites using MediaWiki/en

''This is an incomplete listing of sites that are using MediaWiki and that are written or provided in English language. For wikis in more than one language (including English) see the multilingual list.'' You might also be interested in the List of Open MediaWiki Sites by Andrew Palo and in http://wikiindex.org/Category:MediaWiki.


 * Feel free to add your site to the list, but please stay close to the given format:


 * Please keep the description short and free of advertisement. You don't have to state that your site is "a wiki about ..."; all listed sites are wikis.
 * New entries will be checked. Unreachable sites or sites that don't use MediaWiki will be removed.
 * Last complete check: 2006-02-11
 * (Section-specific checks noted in some cases)

Wikimedia wikis
Due to the large number of Wikimedia foundation wikis (Wikipedia, Wikiquote, Wiktionary, Wikiversity, etc), they are not included on this list. For a list of projects, see Sites using MediaWiki/Wikimedia. For the complete list with all languages, see this page.

#

 * 2012 Wiki - 2012Wiki.com :Information center covering all aspects of the 2012 doomsday meme.
 * 26Blue - 26Blue.com :Kitchen Remedies, Home Cures, Natural Cures, Granny Remedies, Folk Medicines, Elixirs, Tonics, Foods that Heal
 * 43FoldersWiki - wiki.43folders.com :Productivity and time management practices, "life hacks and other smart heuristics", and more!
 * 3D Game Comparison - www.tnlc.com :Game vs. game. No hype; just facts.™ Compares various 3D computer/video games attributes/features: 3D engines, player characters, level/world design, weapons, NPCs (non-player characters), inventories, and more.
 * 866 Area Codes - 866areacodes.com :Reverse lookup for 1-866 phone numbers, suspicious telephone numbers and nuisance callers.
 * 877 Area Code - 877areacode.com :Toll Free 1-877 phone numbers reverse lookup, lookups of unknown telephone numbers including collection agencies and telemarketers.
 * 888 Area Code - 888areacode.com :Reverse lookup 1-888 numbers, list of suspicious telephone numbers including collection agencies and telemarketers.

A

 * AAISP — wiki.aa.org.uk: Wiki for the ISP Andrews & Arnold Ltd.
 * Access Information - ai.net.nz/wiki: A wiki on how to manage Linux.
 * Achievo.org - achievo.org :Documentation of the open source projects Achievo, Achievo ATK and Achievo WDE.
 * AdCiv.org - AdCiv.org : Advanced Civilization and post-scarcity enabled by open-source design and engineering
 * AQWorlds Wiki - aqworldswiki.com :The original wiki for Artix Entertainment's Flash Based MMO - AdventureQuest Worlds.
 * AIDS Wiki - AIDS Wiki :AIDS dissident website
 * Alfresco - Alfresco.org :Document Management System
 * All The Tropes - allthetropes.org :Uncensored fork of the PmWiki based TV Tropes wiki.
 * Alt-StarFleet-RPG Bureau of Information - boi.alt-starfleet-rpg.net :Star Trek-based shared fiction writing club wiki
 * Amateur Radio Wiki - ham.cx: An on-line encyclopaedia of ham radio, established 2008 in Australia.
 * Amazon Sellers' University - Amazon Sellers' University: A complete repository of everything to do with selling on Amazon.
 * Amusement Wiki - editthis.info/Amusement :Wiki created entirely for fun. It should not be taken seriously!
 * Apple Computer Wiki- applecomputer.x10host.com :A wiki dedicated entirely to anything about Apple Inc.
 * Appropedia - appropedia.org :Library of appropriate technology, with textbook style topics and how-to style projects.
 * AQ3D Wiki - AQ3dwiki.com :The original wiki for Artix Entertainment's Flash Based MMO - AdventureQuest 3D: Legend of Lore.
 * ArchivesWiki archiveswiki.historians.org : A directory of archival institutions around the world.
 * Archlinux - wiki.archlinux.org :Linux wiki
 * Argumentrix - Argumentrix.com: A wiki of opnions, arguments and rebuttals
 * Armadeus - Armadeus.org : Open & embedded Linux systems development
 * Armeniapedia - armeniapedia.org : Information about Armenia
 * ASCEND - ascend4.org : A free mathematical modelling program for science and engineering.
 * AsianWiki - asianwiki.com :Database of Asian films, television shows, performers, and filmmakers.
 * AskDrWiki - askdrwiki.com :A Medical Wiki for practicing physicians, residents, and medical students.
 * Assela Pathirana - assela.pathirana.net : Random Ravings
 * Assothink m3m.homelinux.org/wikiMC : Associative thinking model and demonstration (Note: "?uselang=en" can be appended to the end of the URLs until they get their wiki configured for English.)
 * Axaptapedia - axaptapedia.com :Microsoft Axapta programming tips.

B

 * Bahaikipedia - bahaikipedia.org :An encyclopedia for topics relating to the Bahá'í Faith
 * Baseball Reference Bullpen baseball-reference.com/bullpen
 * Battlestar Wiki - battlestarwiki.org :Battlestar Galactica episode and character guides (original and new series).
 * Beachapedia - beachapedia.org :A resource of coastal knowledge, issues and articles from the Surfrider Foundation- including the State of the Beach report covering all 26 US coastal states, Puerto Rico, and British Columbia.
 * BelegarthWiki - geddon.org :An open source project created, written, & edited for the Belegarth Medieval Combat Society, a full-contact sport where participants engage in combat using foam padded representations of medieval weapons.
 * BetaWiki - betawiki.net :A open wiki which contains information about beta operating systems and software.
 * Believe The Sign - believethesign.com :Independent, objective information on William Branham's life and ministry, the beliefs of his followers, and the criticisms of his detractors.
 * Bhamwiki - bhamwiki.com :Documenting the Birmingham District (Alabama, USA)
 * Biblebase.com - wiki.biblebase.com :A one stop Bible resource site.
 * Binary Options Wiki - binaryoptionwiki.com :Binary Options Wiki - Binary Options Trading Pedia
 * Bittylicious - bittylicious.com :Bitcoin buying help and support subsite
 * Biodiversity of India - Biodiversity of India :Aimed at increasing awareness about the biodiversity of India and encouraging community participation in its conservation.
 * BIONICLEsector01 Wiki - biosector01.com :A wiki dedicated to BIONICLE storyline and set information.
 * Bitcoin Wiki - bitcoin.it
 * blackwiki! - dank.qemfd.net :Programming, UNIX, and the ramblings of Nick Black
 * Blender foundation - wiki.blender.org :Graphics animation and video production program
 * Blok City - www.blokcity.com :Information on all the Mega Bloks sets released
 * BluWiki - BluWiki.com :Free MediaWiki web host
 * The BLWiki - www.bluelight.ru :A harm reduction wiki aimed at safer drug use.
 * Bogleheads wiki - https://www.bogleheads.org/wiki/Main_Page :reference resource for investors
 * Boobpedia - Boobpedia.com :Encyclopedia of women with big boobs. Includes busty celebrities, models, adult performers, and amateurs.
 * Border Regiment Wiki - border-regiment-forum.com/wiki: A wiki about the British Regiment between the years 1881-1959.
 * The Bookbag - Bookbag.co.uk :Fiction, biography, crime, cookery and children's book reviews.
 * Bravely Wiki - bravelywiki.org :Wiki that gathers information about the Bravely series by Square Enix and Silicon Studio such as Bravely Default.
 * Brewwiki - www.brewwiki.com :How to make your own beer.
 * Brickimedia Meta - meta.brickimedia.org :The central coordination site for the Brickimedia network.
 * Brickipedia - en.brickimedia.org :The largest online encyclopedia about all things LEGO.
 * Bulbapedia - bulbapedia.bulbagarden.net :Community-driven Pokémon encyclopedia.
 * Bulbanews - bulbanews.bulbagarden.net :Your community Pokémon newspaper.
 * Bulbagarden Archives - archives.bulbagarden.net :Bulbagarden's image repository.


 * BZFlag - my.bzflag.org/w/ :project wiki of BZFlag - a free online multiplayer cross-platform open source 3D tank battle game

C

 * Cabal Online - cabalwiki.com:Comprehensive game information
 * Camera-wiki - camera-wiki.org : A non-commercial encyclopedia of cameras and photography, successor to Camerapedia.org
 * C&amp;C Modding Encyclopedia - ModEnc.RenegadeProjects.com :A project to provide one central source of modding knowledge for the Command &amp; Conquer series of games
 * CGS Publishing Technologies Int'l - http://support.cgsusa.com/wiki :A a collaborative effort to spread knowledge of color management and process improvement using ORIS Color Tuner//Web, ORIS Press Matcher//Web and ORIS Certified//Web.
 * Children's Books Wiki - Children's Books Wiki : A Wiki dedicated to children's books.
 * China Law Wiki - chinalawwiki.com : An international knowledgebase covering the practical legal issues relevant to doing business in and with the People's Republic of China (PRC).
 * Chinese Grammar Wiki - : Chinese grammar resource
 * Cinoku - en.cinoku.com :Film lexicon
 * Citizendium - en.citizendium.org :The Citizens' Compendium
 * Clicklaw Wiki - wiki.clicklaw.bc.ca : A wiki of legal information aimed at the public in British Columbia, Canada. Featuring Clicklaw wikibooks, powered by the wikibook extension. Operated by Courthouse Libraries BC.
 * Clinfowiki - www.clinfowiki.org : The Clinical Informatics Wiki - Topics in clinical informatics.
 * CoastalZone | ZonaCostera | KüstenZone | FrangeCôtière | KustStrook | .Info :Community site with relevant and on-time information, useful for the integrated management of the coastal zones of our world. Integrated development is everybody´s business!
 * Club Penguin Fanon Wiki - fanon.clubpenguinwiki.info :A proudly independent and ever-growing Club Penguin storytelling database!
 * Club Penguin Wiki - clubpenguinwiki.info :A free, editable wiki about Club Penguin.
 * Code Snippets Wiki codesnippets.wikia.com :A wiki-compatible syntax code guide, hosted by Wikia
 * Combine OverWiki - combineoverwiki.net :A wiki covering the Half-Life and Portal game series
 * Combined Community Codec Pack - cccp-project.net :Information and help for video playback in general and CCCP solutions in particular.
 * Communityhealth.in - Communityhealth.in: A resource on community health and the Health For All movement in India put together by people actually working in the field.
 * Conservapedia - Conservapedia :A conservative Christian Wiki encyclopedia.
 * Consumerium - develop.consumerium.org :Fair trade, political consumerism, and moral purchasing trends
 * Cookopedia - en.cookopedia.org/wiki/index.php/Main_Page :The best place about cooking.
 * Corkipedia - corkipedia.com :News and History for Cork City and County
 * CreationWiki - creationwiki.org :Encyclopedia of creation science
 * Creative Commons - wiki.creativecommons.org :Compendium of development information for Creative Commons tools
 * Crossroads MUSH - www.crossroadsmush.com :Setting and theme information for Crossroads MUSH, a text-based roleplaying game
 * Cruising and Sailing Wiki - World Cruising and Sailing Wiki :An online world cruising guide.
 * CryptoDox - cryptodox.com: Encyclopedia on cryptography and information security
 * CS Wiki- cs.calstatela.edu/wiki/ :A wiki used in the Computer Science Department at California State University, Los Angeles.
 * Cumulopedia - clouds.wikia.com/wiki/ :A nephology/meteorology encyclopedia.
 * Cunnan - cunnan.sca.org.au :Information for re-enactors of the Middle Ages and Renaissance
 * CyanogenMod Wiki - wiki.cyanogenmod.com :A wiki for the CyanogenMod Community project.
 * CycleChaos- Motorcycle Wiki :Encyclopedia focusing on motorcycles.
 * CyPhyNets - cyphynets.lums.edu.pk :The website of the Laboratory for Cyber Physical Networks and Systems (CyPhyNets), at the School of Science and Engineering, Lahore University of Management Sciences, Lahore, Pakistan.

D

 * D&D Wiki - dandwiki.com :A collection of Dungeons and Dragons material both homebrewed and SRD.
 * Daria Wiki - dariawiki.org :Information about the MTV series and its fandom.
 * DayZ Wiki - dayzwiki.com :Tips, guides, and information for DayZ, a zombie survival mod for the game ArmA II.
 * Deskthority wiki - deskthority.net/wiki/Main_Page : This wiki is dedicated to mechanical keyboards, mice and other human interface devices.
 * Detective Conan Wiki - detectiveconanworld.com/wiki/ :The ultimate resource about Detective Conan.
 * Diatessaron wiki - Diatessaron.ir : A wiki about Diatessaron Gospel and anything related.
 * Dirtopia - dirtopia.com :The free off-road encylopedia
 * Discourse DB - discoursedb.org :a database of political commentary, including print and online sources
 * Discworld & Pratchett Wiki - wiki.lspace.org :Everything about Terry Pratchett and his Discworld book series
 * Distributed Proofreaders - pgdp.net/wiki : A wiki for documentation and collaborative tasks at Distributed Proofreaders
 * dKosopedia - dkosopedia.com :A political encyclopedia built by the DailyKos community
 * Dolibarr - Dolibarr ERP & CRM wiki :All users and developers documentation of Dolibarr OpenSource project.
 * DominionStrategy Wiki - Main Page : A site about the strategy of the game Dominion.
 * DoomWiki.org - doomwiki.org :The Doom video game series.
 * DragonFable Wiki - dfwiki.com :A wiki for Artix Entertainment's Flash Based Web RPG - DragonFable.
 * DrinkiWiki - drinkiwiki.com :Large collection of drinking games.
 * Dreamhost - wiki.dreamhost.com :Customer wiki for the webhosting company Dreamhost
 * Dungeons and Dragons Wiki - http://www.dnd-wiki.org : A project dedicated to providing reference and fan-made material for the Dungeons and Dragons roleplaying game.
 * Dystopia Wiki - www.dystopia-game.com/wiki :A project dedicated to providing information about the Dystopia modification of Half-Life 2.

E

 * e107 - e107.org :e107 is a content management system written in php and using the popular open source mySQL database system for content storage. It's completely free and totally customizable, and in constant development.
 * ECGpedia - ECGpedia.org :ECG (heart tracings) course
 * Eclipsepedia - wiki.eclipse.org :The Eclipse Open Source Project Wiki
 * EcoliWiki - ecoliwiki.net :Resource for the Model Organism Escherichia coli
 * ECO Issues - ecoissues.ca :Database of reports by the Environmental Commissioner of Ontario (ECO).
 * Edutech Wiki http://edutechwiki.unige.ch/: Educational technology, hosted at TECFA, University of Geneva.
 * Ekopedia - en.Ekopedia.org: The encyclopedia of ecology. The project is part of http://www.ekopedia.org
 * EggeWiki - theeggeadventure.com/wiki: Brian Egge's coding tips and scrapbook
 * Egres Open - cs.elte.hu/egres/open :Collection of open problems in combinatorial optimization, maintained by the Egerváry Research Group.
 * Electoral Reform - ElectoralReform.Wikia.com: Voting Systems and Electoral Reform
 * Embedded Linux - elinux.org: Embedded Linux Developers and Users wiki.
 * Embryology - https://embryology.med.unsw.edu.au: Education and research wiki for embryology.
 * Emo Speedway Wiki - Emo Speedway Wiki :Historical Information on the Emo Speedway
 * EntropiaPlanets Wiki - entropiaplanets.com/wiki/:about MindArk's MMORPG/Virtual World platform Entropia Universe.
 * EOFFTV - http://www.eofftv.com/eofftv/ :a database of horror, science fiction, fantasy and animated film and television
 * EvoWiki - cotch.net :Evolution education, biology, and origins. Repository for mainstream scientific responses to common intelligent design and creationism arguments.
 * explain xkcd - explainxkcd.com :dedicated to explaining the popular webcomic xkcd
 * Eternal Lands Wiki - el-wiki.eu :Eternal Lands fantasy MMORPG unofficial wiki

F

 * Fameopedia.net - fameopedia.net : A project that gives everyone a platform to manage their popularity.
 * Fanra's EverQuest Wiki - everquest.wikkii.net :EverQuest game information.
 * Fantasy Life Wiki - flwiki.org :Everything about the Fantasy Life game!.
 * Festipedia - festipedia.org.uk :A knowledge database for the Ffestiniog and Welsh Highland Railways.
 * Fiesta Wiki - www.fiestafan.com :The ultimate source for information on the MMORPG online game Fiesta.
 * FileZilla - wiki.filezilla-project.org :FileZilla Documentation
 * Firefall - firefall-wiki.com :a wiki for Red 5 Studios Upcoming free-to-play Tactical Shooter - Firefall.
 * FishPi - wiki.fishpi.org :FishPi : An Autonomous Drop In The Ocean. Design & build a transatlantic autonomous vehicle, controlled by the Raspberry Pi, and powered by solar energy.
 * FIXwiki - fixwiki.org : a Wiki dedicated to the FIX protocol
 * FFXIclopedia - http://wiki.ffxiclopedia.org :THE Source for Final Fantasy XI information.
 * FK Wiki - fkwiki.com : A knowledge-base for the Faculty of Medicine at UGM.
 * Flat Earth Wiki - wiki.tfes.org: The official Wiki of the Flat Earth Society.
 * FlatRedBall - FlatRedBall.com Wiki :Documentation covering the FlatRedBall Game Engine and general game development information.
 * Flight Instructor Wiki - cfi-wiki.net :Information and Resources for Flight Instructors and their students.
 * Folding@Home - Folding@Home :Folding@Home is a distributed computing project aimed at understanding protein folding, misfolding, and related diseases.
 * Foreclosurepedia - Foreclosurepedia :User contributed foreclosure wiki for the REO/Property Preservation industry
 * Free Geek - wiki.freegeek.org :Free Geek, a nonprofit organization which puts unwanted computers back into use to benefit deserving volunteers and nonprofits.
 * FreeGameDevWiki - wiki.freegamedev.net :Open source game development wiki.
 * Friends of Math - friendsofmath.org :A wiki for sharing mathematics solutions.
 * The Frushour Wiki - thefrushourwiki.org : Private family genealogy wiki.
 * Funtoo Wiki - www.funtoo.org : Official Funtoo Website/WIki
 * Future Worlds - Future Worlds :Wiki for all Future Worlds Center ideas, people, projects, products etc.
 * eFlyFF Wiki - flyff-wiki.gpotato.com: Your guide into the world of Madrigal.

G

 * Gaiapedia - Gaia.Wikia.com : Community dedicated to documenting the largest English speaking forum on the internet. (GaiaOnline)
 * Galbijim Wiki - http://wiki.galbijim.com : Information on South Korea, specifically from the point of view of the expat in the country.
 * Game Ideas Wiki - gameideas.wikia.com :A wiki about ideas for video games, hosted on Wikia
 * Gamepedia - www.gamepedia.com/ :Collection of wikis about certain video games. Run by Curse.
 * Game Programming Wiki - gpwiki.org : game programming tutorials and source code for a variety of languages and platforms.
 * GameWinners - GameWinners.com : Uneditable cheat code website.
 * ganfyd - ganfyd.org : Resource for medical professionals
 * Gardenology - Gardenology.org : Gardening wiki and plant encyclopedia
 * Geeklog Wiki - wiki.geeklog.net :For the open source CMS / weblog
 * Geni Wiki - wiki.geni.com : Wiki for Geni.com, a genealogy site.
 * GenieWiki - www.digitization.org :For the three games using the genie engine - Age of Empires, Age of Kings and Star Wars: Galactic Battlegrounds
 * Gentle Giant Home Page - www.blazemonger.com/GG :Rock band Gentle Giant
 * Gentoo Wiki - wiki.gentoo.org : Official Gentoo WIki
 * GhibliWiki www.nausicaa.net/wiki/Main_Page :A collection of information about Hayao Miyazaki and his works.
 * GingerWiki - GingerWiki.com : Local services such as plumbers or dentist with tables of prices.
 * GishanWiki - wiki.gishan.net : GishanWiki is a collection of university reports and projects.
 * Globulation2 - globulation2.org :The game Glob2
 * Global Web Security Systems Support Wiki - wiki.gwebs.com : Both a support wiki for Global Web Security Systems' MailCloak software, and an educational wiki about encryption.
 * GoMediaWiki - gomediawiki.com :Mediawiki skins and extensions
 * Government and Social Media Wiki - GovSM : A wiki tracking the use of social media by government.
 * Grand Comics Database - docs.comics.org/wiki/Main_Page :Documentation for the web site database interface and error tracker
 * GridPP - https://www.gridpp.ac.uk/wiki/Main_Page :GridPP, UK Computing Grid for Particle Physics.
 * Guild Wars Wiki - wiki.guildwars.com :The official Guild Wars Wiki, information on all aspects of the MMO, Guild Wars.
 * GuildWiki - GuildWiki.org : a wiki guide for ArenaNet's Competitive Online RPG, Guild Wars.
 * Gungfu Dojo - Gungfu WikiDojo Listings :The Online Resource of Martial Arts Schools, Training Centers, and Dojos throughout the world and the USA.
 * GuyanaWiki - GuyanaWiki.org :Guyana is an english speaking country in South America with information and photos on its wildlife, environment... A free CD project based on it is given out to schools and libraries.

H

 * Hardware Book - www.hardwarebook.info :Cable and connector pinouts along with technical specs of computers and consoles.
 * Hardwood Investments Wiki - wiki.hardwood-investments.net :A wiki about investing in teak plantations and other hardwood/forestry investments
 * HE FAQ faq.he.net :Information for Hurricane Electric customers.
 * Health++ - www.healthplusplus.com :HealthPlusPlus is a wiki about health, also a medical knowledge base, an online medical encyclopedia.
 * Health and Medicine Wiki - health-and-medicine.wikia.com : a Wiki about Health and Medicine, mostly written by Fuse809 (talk), hosted by Wikia. It, as of 15:17 28 Jan 2015 (UTC), has 920 pages and 950 files.
 * Health and Wellness - health.jbdirectory.com : Health and wellness, a blessing that money cannot buy. A personal journey to become more health-conscious through knowledge.
 * Health Knowledge Base - HealthKB.org :Health Knowledge Base about Mind, Body, and Environment.
 * Help For Shepherds - helpforshepherds.org :A site to help supply resources for Christian pastors.
 * HeroSmash Wiki - herosmashwiki.com :A wiki for Artix Entertainment's Flash Based MMO - HeroSmash.
 * Hifi-Wiki.com - www.hifi-wiki.com: A free database for all kinds of hifi products
 * Hitchwiki - hitchwiki.org :Information about hitchhiking.
 * Hollywood Cliches - HollywoodCliches.com : User ratings of Hollywood films on their political bias.
 * Homestar Runner Wiki - hrwiki.org :Knowledge-base about the cartoon series Homestar Runner
 * Hortipedia - en.hortipedia.com :garden encyclopedia, plants, plant database
 * Hortipedia commons - commons.hortipedia.com :Media Repository - more than 20.000 pictures of plants


 * HostelManagement.com - Hostel Management Wiki :Community-written documentation and resources on how to start and manage backpacker hostels.
 * howtopedia.org - http://www.howtopedia.org :(en,fr,es) Howtopedia is a library for practical knowledge and simple technologies. It focuses on development tools.
 * Hymns Without Words - www.hymnswithoutwords.com :Hymns Without Words is a resource of downloadable recordings of hymns and carols that are suitable for use in services.
 * HelioHost - wiki.helionet.org :Articles related to HelioHost and it's services for HelioHost customers.
 * Hypothetical Hurricanes - hypotheticalhurricanes.hol.es :Create your own hurricane seasons here.

I

 * India Water Resources Information System (India-WRIS) Wiki - www.india-wris.nrsc.gov.in/wrpinfo
 * This wiki is a part of the India-WRIS Project website. This website aims at providing single window solution to water resources in India. Since the main website is mostly map based, the wiki takes care of the other content like text and images. It is edited and maintained by a dedicated team.


 * International Guide to Avoid Dying - IG2AD.com
 * This Website aims to be a general reference for all the things you should know if you are ever in a survival situation.


 * ICANN Wiki - ICANNWiki.com
 * Ifigenia - Ifigenia.org : Wiki for collaborative scientific research, development of educational content and partners networking in the areas of intuitionistic fuzzy sets and generalized nets
 * Illogicopedia - illogicopedia.org :A wiki for random humour, Illogicopedia is a wiki mostly dedicated to non-, semi- or entirely humorous surrealism (which might variously be considered clever, dumb, silly, or just plain nonsensical) and some satire.
 * infoAnarchy Wiki - infoanarchy.org :Information related to file sharing, copyright, the gift economy, cyber liberties, peer to peer research, information tools, and similar topics
 * International Music Score Library Project - www.imslp.org :A virtual library containing public domain musical scores, as well as scores from composers who are willing to share their music without charge.
 * Internet Movie Firearm Database (IMFDB) - www.imfdb.org :A wiki listing the occurrences of different firearms in Film, Television and Video Games.
 * Interuniversal - editthis.info/Interuniversal :A wiki for the science fiction project Doom Crisis.
 * IpbWiki - www.ipbwiki.com :Integration of Invision Power Board with Mediawiki.
 * ieXbeta Wiki - iexbeta.com :ieXbeta's wiki is about operating systems and software applications.
 * IRC Wiki - IRCWiki.org
 * Irenic Clan Wiki - irenic.ws :Information wiki for the Irenic RuneScape clan and related RuneScape topics run by the clan community
 * Islamic E Books - islamic-e-books.com :Free islamic Books to download.
 * ISOGG Wiki - ISOGG Wiki :Genetic genealogy information from the International Society of Genetic Genealogy.
 * ITwiki - stevens.edu/itwiki :The Stevens Institute of Technology's Information Technology documentation website.
 * IIwiki - :A wiki for roleplaying related to the online game NationStates.

J

 * Janapar - www.janapar.org :Janapar is the trail leading trekkers and hikers through Karabakh. users with large or scattered music collections.
 * JavaScript Wiki - javascript.wikia.com :sufficiently interoperable ECMAScript
 * Johor-Bahru-Directory - johor-bahru-directory.com : The Encyclopedia of Johor Bahru
 * Jmol - Jmol wiki :Jmol is a Java molecular viewer for three-dimensional chemical structures.
 * Journalists' Workspace - Journalists' Workspace :Closed wiki for use by Wikinews accredited reporters working on embargoed and investigative reports
 * Judgepedia - judgepedia.org : An encyclopedia for Judges at all court levels.

K

 * Kenya.or.KE -kenya.or.KE : The Kenya we know - the Free Kenyan encyclopedia that anyone can edit. A Wiki about the country Kenya
 * Know Home Schooling - knowhomeschooling.com :Home Schooling Guide
 * Kodi Wiki Manual - kodi.wiki :The online manual for Kodi® media center (formerly Xbox Media Center), the free open source (GPL) multimedia-player for the Xbox™ from Microsoft.
 * KoL Wiki - kol.coldfront.net : Information and spoilers for Kingdom of Loathing, a web-based MMORPG
 * Krass - krass.com :Techno in Barcelona, Germany and London.
 * Kreosite - kreosite.com :Information on all the Kre-o sets released by Hasbro

L

 * LabVIEW Wiki - labviewwiki.org :Dedicated to the LabVIEW programming language.
 * LEGO Ideas Wiki - ideas.brickimedia.org :An encyclopedia for LEGO Ideas projects, users and more.
 * LEGO Stories Wiki - stories.brickimedia.org :A fanon site where anyone can write and add fan stories related to LEGO.
 * Libregamewiki - libregamewiki.org :Free as in freedom video gaming
 * LibriVox Wiki - wiki.librivox.org :LibriVox provides free audiobooks from the public domain.
 * LifeWiki - conwaylife.com/wiki :A collection of patterns and information about Conway's Game of Life
 * Lingua Veritas Lingua Veritas - Translation interpretation :A Wiki-based multilingual resources agency
 * Linux Questions - wiki.linuxquestions.org :A General Linux Self-service Technical Support Forum
 * Little Rock Renaissance - http://honors.uca.edu/wiki :All things Central Arkansas
 * Linux Shell Scripting Wiki - bash.cyberciti.biz :This tutorial is a beginners handbook for new Linux users / Sys admins and school students studying Linux or computer science.
 * LiteratePrograms - literateprograms.org
 * Living Control - Livingcontrol.com :Information about Living Control and its products.
 * LiquidsWiki - liquidswiki.com :Equipment for Handling and Processing Liquids.
 * Lost Souls - lostsouls.org :A MUD with a wiki for its players and developers.
 * Lostpedia - lostpedia.com :A fan-maintained guide to the TV show LOST.
 * LOTRO Wiki - lotro-wiki.com : A Lord of the Rings Online fan-site.
 * LÖVE - love2d.org/wiki :The API reference for the LÖVE game engine.
 * LyricWiki - LyricWiki.org :Over 200,000 songs w/no annoying banners or pop-ups.

M

 * Madde14/English - madde14.org/english :An online database on migration and asylum.
 * Mario RPG Universe - wiki.mariorpguniverse.com :Wiki devoted to the Mario role-playing game series.
 * Super Mario Wiki - Mariowiki.com :A wiki about Nintendo's Super Mario series.
 * MakeHijra - MakeHijra.com (down) :Guide on Moving to a Muslim Country
 * Malawi360 - Malawi360.com :Living, working and tourism in Malawi
 * Malaysia - Malaysiafactbook.com :The Encyclopedia of Malaysia
 * MansonWiki - MansonWiki.com :A wiki devoted to industrial rocker Marilyn Manson and his eponymous band.
 * Marvel Comics Database - marvel.wikia.com/Main_Page :Marvel Comics information and image database
 * Martial Arts - Martial Arts Wiki - WikiMartialArts.org: Online information and resource for Martial Arts, Karate, Kungfu, Mixed Martial Arts, Wrestling, Jui-Jitsu, Grappling, Judo, Weaponry, History of Martial Arts, Traditonal Shaolin, General Instruction, Dojo School Listings and much more
 * Material Project - MaterialProject.org :A wiki catalog of materials, products, and buildings for the architecture and interior design community
 * Mathematical Trading and Finance - Mathematical Trading and Finance :Based around the MSc course available at Cass Business School, London
 * MechQuest Wiki - mqwiki.com :A wiki for Artix Entertainment's Flash Based Web RPG - MechQuest
 * Men of War - Wiki - www.menofwarwiki.com :The unofficial community-wiki on the real-time strategic video-game "Men of War"
 * Mercury Rising Fanon Wiki - Mercury Rising Fanon Wiki :Fanon wiki for 1998's Mercury Rising and its expanded universe content
 * Met Wiki - MetWiki.com :The New York Mets players, seasons, games, trades, and other info
 * MetaBase - BioDatabase.Org :MetaBase is a user contributed database of databases, listing all the biological databases currently available on the internet
 * Metroid Wiki - www.metroidwiki.org/wiki/Main_Page :A wiki dedicated to Nintendo's Metroid franchise. The wiki contains in depth information on everything Metroid
 * MFBWiki - mfbwiki.org :Recording the history of Melbourne's Metropolitan Fire Brigade
 * Micros Systems - wiki.micros.com/wiki :Official documentation for their latest products (Site is restricted via logging in to their website)
 * Middleton-StJohns - Middleton-StJohns :Genealogy and literary site makes extensive use of DPL and interwiki links
 * Minecraft Wiki - Minecraft.gamepedia.com :A wiki dedicated to gathering useful information related to Minecraft, a Java-based computer game created by Notch
 * MineZ Wiki - MineZwiki.net :Strategic information source for MineZ, the multiplayer zombie apocalypse game-mode for Minecraft inspired by DayZ
 * Miraheze Meta - Meta: Meta coordination page for Miraheze wikis
 * MixesDB - MixesDB.com :Database for DJ Sets and tracklists
 * ModEnc - ModEnc.RenegadeProjects.com :An Wiki collecting all modding information regarding Command&Conquer series
 * Monoskop - monoskop.org :A wiki for art, culture and media technology
 * Moodle Documentation - Moodle Docs :Documentation for Moodle, an open source educational course management system
 * MoparWiki - MoparWiki.com :The simple goal of becoming the single best source of anything having to do with Mopar cars and trucks
 * Mozilla Wiki - wiki.mozilla.org :Plans of software development of the Mozilla Foundation
 * Mozillazine Knowledge Base - kb.mozillazine.org :Semi-official knowledge base about Mozilla products
 * Mountwiki - mountwiki.com :Wiki containing information about mountains and routes
 * MPedia - mpedia.dan.info :A wiki encyclopedia on the subject of Mensa, the high-IQ society (An independent project not affiliated with, owned by, or endorsed by Mensa)
 * MTG Archive - mtgarchive.net :A library of information related to the Magic: The Gathering collectible card game
 * MusicProf - MusicProf.org :An Instrument For Music Notes
 * MuslimWiki (Mw) MuslimWiki.com :The open encyclopedia on Islamic Subjects and the Muslim world from the Muslim perspective
 * My Research Wiki - research.chanur.com :Genealogy research notes
 * MyraPedia - myra.wikia.com :Create fantasy detail with art and stories in one of the oldest SharedWorld projects around the world Myra

N

 * NSDL - wiki.nsdl.org :National Science Digital Library (see link at OER Commons)
 * NDTWiki - www.NDTWiki.com :Non Destructive Testing Wiki
 * Nashvillelife - www.nashvillelife.org :Living information about Nashville, TN, USA
 * NativeWiki - www.nativewiki.org :Native and Indigenous Peoples Wiki
 * NamelessWiki - www.namelesswiki.com :A wiki dedicated to hacking, social engineering and secure computing
 * NavyHPSP.net - navyhpsp.net :Navy Health Professions Scholarship Programs student collaboration.
 * Narciki - wiki.neely-chaulk.com :Naval Architecture wiki
 * NeoNoodles - www.neonoodles.com :Parenting advice and information
 * NetPedia - Netmunity.com :The great free encyclopedia of Netmunity - The Great Internet Community
 * NetworkDictionary - wiki.networkdictionary.com :Information sharing on the IT, Networking, Telecom and Computer fields
 * Network for the Study of Archaic and Classical Greek Song www.let.ru.nl/greeksong :International network devoted to the study of lyric, elegiac and iambic poetry in archaic and classical Greece
 * Neverwinter - nwn.wikia.com :A Wikia that documents Neverwinter Nights.
 * New Start Ministries Church Wiki - newstartministries.org :An effort by New Start Ministries Church in San Francisco to allow collaboration when developing every Sunday service
 * New York City Electronic Music Collective - nycemc.ajbnet.com :A site devoted to the re-connection of the New York electronic music scene.
 * Nexopedia - wiki.nexoscms.org :A wiki dedicated to the NexOS CMS
 * NHS Choices Wiki - NHS Choices wiki :A wiki containing events related to the NHS (National Health Service)
 * Nintendo-Scene - wiki.nintendo-scene.com :A collection of tutorials guides and information on the hacking and modification of Nintendo consoles.
 * NinWiki - ninwiki.com :Wiki for the band Nine Inch Nails
 * Nissan 350Z & 370Z Wiki - www.350z-tech.com :Info on the Nissan 350Z and a few other cars.
 * Naturecure India - http://www.naturecureindia.info :Website on alternate therapy system for curing
 * NetNovinar - wiki.netnovinar.net :Edithorial Ethics for online journalists Wiki
 * NY Canals NY Canals.com - :Information and cruising guide to the New York State Erie, Oswego, Champlain and Cayuga-Seneca Canals.
 * Node, The The Node - :A collective database for the fictional sci-fi universe of 'Transit'.
 * Nordic Names - nordicnames.de :Origin and meaning of Scandinavian first names.
 * NSwiki - ns.goobergunch.net :A Wikipedia-style encyclopedia for the online game NationStates
 * Numberzoom - numberzoom.com :Reverse phone number lookup, Caller ID lookup and list of unknown telephone numbers including collection agencies and telemarketers.
 * NursingWiki - NursingWiki.org :knowledge-database for nursing and health care information
 * NWO Promisance InfoWiki - NWO Promisance :Text based game that utilizes a wiki to give the user information on how to play the game

O

 * Oberwiki - oberwiki.net :Wiki for anything and anyone related to Oberlin College and the town of Oberlin, Ohio.
 * Objectwiki - objectwiki.sciencemuseum.org.uk :Wiki for objects in the Science Museum in London, UK.
 * Objectivism Wiki - wiki.ojectivismonline.net :A wiki for Ayn Rand's philosophy of Objectivism
 * Ocean Wiki - www.oceanru.com/wiki :Wiki for anything and anyone related to Hidden Knowlege.
 * OCESS Wiki - wiki.spacesim.org :Wiki for the Ottawa-Carleton Educational Space Simulation
 * OEIS Wiki - oeis.org/wiki :Wiki for the Online Encyclopedia of Integer Sequences
 * Octopus Wiki - tddft.org :Software for the quantum simulation of the excited dynamics of molecules.
 * Offwiki - offwiki.org :Community dedicated to improving Wikipedia by discussing and testing ideas for onwiki adoption.
 * Ogre3D - www.ogre3d.org : Free open source 3D graphics engine library.
 * Oh Internet - ohinternet.com:A work-safe catalog of Internet and popular culture, with articles contributed by readers.
 * Old-Computer Wiki - compact-mac.110mb.com :Wiki about old computers and stuff (we haved moved to a new host!)
 * Old Dogs Rock - olddogsrock.com :Sharing information about how to keep our aging and ill dogs healthy and happy.
 * Onekopakaspace Wiki - theoks.net/~onekopaka/wiki/ :A Wiki made for fun & collaboration.
 * Online Marketing Wiki - www.onlinemarketingwiki.com/wiki/ :A Wiki about online marketing
 * ooBdoo - www.oobdoo.org :Center for popular information of all kinds.
 * OOModels - oomodels.org :An open library of modelling artefacts from the business and technical domain
 * Open Babel - openbabel.sourceforge.net :Open source chemistry library
 * Open Circuits - www.opencircuits.com :A wiki for sharing open source electronics knowledge, schematics, board layouts, ports and parts libraries.
 * Open Clip Art Library Wiki - http://www.openclipart.org/wiki :Wiki for the Open Clip Art Library Project
 * Open Component Project - opencomponentproject.org :A shared repository of public domain symbols, footprints, and 3D component models for use in electronic design automation (EDA) software.
 * Open Semantic Framework (OSF) Wiki - http://wiki.opensemanticframework.org :Wiki for the Open Semantic Framework open-source semantic technology software stack, including about 500 articles on technical aspects of installing, managing and using OSF, plus general semantic Web topics
 * Openbox - openbox.org :Openbox window manager
 * OpenDarwin - opendarwin.org :Open source Darwin project
 * OpenID.net - openid.net wiki :OpenID development and status
 * OpenGameForge.org - www.opengameforge.org :Free open source game and mod development community.
 * Open Game Wiki - www.opengamewiki.com :Open Game Wiki for maintaining an encyclopedia on all available games.
 * OpenGovProject.org - OpenGovProject :Collaborate with us in providing information about the politicians that hold office, their various positions, the functions of their office, and how to make a difference.
 * OpenMW - openmw.sourceforge.net/wiki :OpenMW is an open source reimplementation of the game Morrowind.
 * OpenSearch - opensearch.org :A9 open search standard development
 * OpenTTD - wiki.openttd.org :Game manual and development resource
 * OpenTutorial - www.OpenTutorial.com :Tutorials About Everything by Anyone
 * OpenVZ - wiki.openvz.org :Documentation for OpenVZ - Operating system-level server virtualization, free software built on Linux
 * OpenWetWare - openwetware.org :An effort to promote the sharing of information, know-how, and wisdom among researchers and groups who are working in biology & biological engineering.
 * Orain Meta - meta.orain.org :Meta coordination page. Hacked on September 20, down since
 * Organic Design Wiki - organicdesign.co.nz :Exploring OO, P2P & XML within the Wiki environment
 * OrbLyrics - orblyrics.com :An English wiki of Japanese artists' and bands' lyrics in Romaji and English translations.
 * OrthodoxWiki - orthodoxwiki.org :An open-content encylopedia of Orthodox Christianity
 * Omnimaga PrizmWiki - prizmwiki.omnimaga.org :A source for Casio Prizm development info
 * OSDev - wiki.osdev.org
 * OSDevices - osdevices.org :Because devices deserve open source
 * Our College Notes - ourcollegenotes.com :Wiki for students to create one perfect notebook for every class.
 * OverclockingWiki - OverclockingWiki.org :Overclocking information plus the software to overclock and run on your overclocked system.
 * OverSoul Wiki - oversoulwiki.com :The original wiki for Artix Entertainment's Flash Based MMO - OverSoul.
 * OZONE Wiki - ozone.game-host.org :Wiki about the 3D-Oxyd called OZONE
 * Orbit of Information - orbit of information :This web portal gives up to the minute updates on the modern technologies.

P

 * Park My Bones - parkmybones.com Write your own memorial/obituary/life story.
 * Pale Ravens - http://wiki.paleravens.com:An all-era Vampire storyworld and play-by-wiki freeform RP (hosted by MysteryAndMagic.com).
 * PC-BSD Wiki - wiki.pcbsd.org :A wiki for PC-BSD, an easier to use more heavily GUIfied operating system based upon FreeBSD.
 * PCGamingWiki - pcgamingwiki.com :Information, tips, hacks and fixes for PC games.
 * Peacecorpswiki - peacecorpswiki.org/ :Any Peace Corps info
 * PESWiki - peswiki.com/ :The community-built resource that focuses on alternative, clean, practical, renewable energy solutions.
 * PGN - PGN Wiki : PGN's Community Wiki
 * Ph.D. Prep Track - phdprep.byu.edu :Provides information on earning an Accounting Ph.D.
 * Physlab - physlab.lums.edu.pk :The new website of the Experimental Physics Laboratory at School of Science and Engineering, Lahore University of Management Sciences, Lahore, Pakistan.
 * PidgiWiki - http://www.pidgi.net/wiki/ :the video game media repository
 * PinataIsland.info - http://PinataIsland.info :Dedicated to the Viva Piñata Xbox 360 game and television series
 * PinkWiki - pinkpinero.net/wiki :Current and historical archive for the Pink Pinero guild.
 * Planet Nepal http://www.planetnepal.org :Nepal Encyclopedia Project
 * Plant Encyclopedia (The) ThePlantEncyclopedia.org :The global guide to cultivated plants.
 * Pl@ntUse - uses.plantnet-project.org/en : useful plants of the world and their uses, a study case of Pl@ntNet plantnet-project.org
 * PlasticsWiki - Plastics Wiki :The wiki about plastics & polymers
 * PLAWiki - PLA Wiki :Satire wiki about open source, established by PLA - Penguin Liberation Army
 * PlentyWiki - www.theplenty.net/wiki/ : Realm of the Elderlings and other creations of Robin Hobb/Megan Lindholm
 * Point Omega Research - wiki.omega-research.org :A wiki about the coming Point Omega transition
 * PonyVSPony Wiki - ponywiki.com :A wiki for Artix Entertainment's Flash Based PvP - Pony Vs Pony!
 * Pornopedia - en.pornopedia.com: Erotic encyclopedia
 * PortlandWiki - portlandwiki.org :Civic wiki for Portland, Oregon.
 * Poser and Daz Studio Free Resources Wiki - https://poserdazfreebies.miraheze.org/wiki/Main_Page :Links and descriptions of legally-free content for the 3D-art programs Poser and Daz Studio
 * Pouya Animation Wiki - thepa.wikinet.org :Pouya Animation Foundation's user wiki.
 * Programmers' Society - progsoc.org :A society at University of Technology, Sydney
 * ProofWiki - ProofWiki.org :A dictionary of mathematical proofs.
 * Proteopedia - Proteopedia.Org : A collaborative, 3D encyclopedia of proteins and other molecules with >50,000 pages using the Jmol extension (java applet showing rotating molecules) and a molecular Scene Authoring Tool.
 * Pro Cycling Wiki - procyclingwiki.com :A communal place for all things cycling.
 * PSN Trophy Wiki - psntrophywiki.com :A wiki for information about PlayStation games and trophies.
 * PsychWiki - www.psychwiki.com :Creating a collaborative resource and compendium of practical knowledge about psychological research.
 * Public Domain Ideas - PDI :Ideas and inventions that go into the public domain so they can't be patented.
 * Pub Night - Pub Night :A wiki dedicated to Real Ale pubs, primarily round Cheltenham but spreading slowly outwards.
 * PyMOLWiki - www.pymolwiki.org : Community support site for the molecular visualization program, PyMOL.
 * Pynchon Wiki - www.pynchonwiki.com :Explores all the novels of Thomas Pynchon - 6 wikis.
 * Pzwiki - www.pzwiki.net : A wiki for the indie game Project Zomboid.

Q

 * Qi Hardware - qi-hardware.com :Copyleft hardware project.
 * QWiki - Julianium.com/QWiki :Personal site.

R

 * RacecarID - racecarid.com :A repository for Racecar and related information.
 * Radiology Wiki - RadiologyWiki.org :A reference for medical imaging
 * Radswiki - radswiki.net :A radiology wiki
 * RangersPedia - rangerspedia.org :Comprehensive guide on the net to the World's most successful club, Rangers FC
 * RationalWiki - rationalwiki.org
 * RaveWiki - ravewiki.com :A site hosting software projects (like the Rave Framework), documentations and articles
 * Razor Wiki- wiki.razorirc.info :A site for development and documentation for an IRC client, server and in-house protocol.
 * Raw Natural Health Wiki - RawNaturalHealth.com : Use simple, raw, natural, healthy, organic foods that work to get you into better health and well-being.
 * RayWiki - raymanpc.com/wiki : Free encyclopaedia about Rayman
 * ReactOS Wiki - www.reactos.org/wiki :Wiki relating to the development and documentation of the ReactOS Operating System
 * RealCTY - RealCTY.org :About CTY, the Center for Talented Youth, especially its summer program.
 * Real Estate- http://www.florida-propertysearch.com:Tampa Bay beaches real estate and gulf beaches
 * Reforpedia - Reforpedia :The Bible (in Greek and Hebrew), Doctrine and History from a Reformed (Calvinist), Christian perspective, emphasis on linguistics
 * ResearchID.org - ResearchID.org :Researching all issues related to intelligent design.


 * RizonWiki - Rizon Wiki :Rizon Network's Knowledge based Wiki for FAQ and Information relating to the network.
 * RLDSWiki - Wikia :A Restoration Branches knowledge base, written from a RLDS Point of View.
 * Roblox Wiki - wiki.roblox.com :Teaches you how to Use, Play and Build on a free online Multiplayer game called Roblox.
 * Rocna Anchors Knowledge Base - www.rocna.com/kb :Comprehensive collection of resources relating to boat anchors, anchoring, and accessories.
 * RODER Vision - RODER Vision :A guide on LED lighters for industrial vision systems.
 * Rodovid - rodovid.org : The généalogical three wiki.
 * RouteXL - routexl.nl :User manual for a multiple destinations route planner
 * Royalist Canada - Royalist Canada :Central information and educational resource for Canadian monarchists and those interested in learning about the constitutional monarchy of Canada.
 * RTAW Reefpedia - RTAW Reefpedia :Reefing the Australian Way Reefpedia, providing and information resource on the keeping of a marine aquarium for Australian hobbyists.
 * RuleML Wiki - RuleML Wiki :About the RuleML Knowledge Representation Language and the organization, RuleML, Inc., that develops it.
 * RuneScape Wiki - RuneScape Wiki :A large database containing information on the game RuneScape, hosted by Wikia.
 * RxWiki - RxWiki.com : An online medication encyclopedia for consumers, written and edited by pharmacists.
 * Random Wikisaur (English) - Random Wikisaur :A Wiki for free information for everyone.
 * Random Wikisaur (Simple) - Random Wikisaur :A Wiki for free information for everyone.

S

 * S1mp3 project - wiki.s1mp3.org :Information related to the S1 Mp3 Player
 * SalviaDivinorum.org - Salviadivinorum.org :Covering Salvia Plant Research and Usage and media coverage
 * SacWiki - SacWiki.com :The definitive guide to all things related to Sacramento California.
 * Saint Wiki - www.saintwiki.com :A free repository of Catholic resources.
 * SA-MP Wiki - www.wiki.sa-mp.com :The official page of SA-MP, a mod where you can play Grand Theft Auto San Andreas online with your friends.
 * sasCommunity.org - sasCommunity.org :The place for all users of SAS software to gather to share information.
 * Saltspring Ecovillage Education & Development Society (SEEDS) - IslandSeeds.org :Development of an ecovillage on Salt Spring Island, BC, Canada
 * Santa Cruz.com - Santa Cruz.com :Santa Cruz, California news, events, and tourism information
 * Scan New England - Scan New England : Covering the radio communications hobby for the New England area of the USA.
 * SCI Team Wiki- www.sciteam.ubc.ca :A peer program group from the University of British Columbia
 * Scion Tech- www.scion-tech.org :A site for the Toyota Scion line of cars: tC, xA, xB, xD.
 * ScottishClimbs- www.scottishclimbs.com :A site about climbing in Scotland.
 * Scout It Out - scoutitout.org :A wiki designed to provide information on great Boy Scout activities that are available for Boy Scouts in their area.
 * ScoutWiki - en.scoutwiki.org :Free scouting encyclopedia in English.
 * Scramble - scramble.nl :All about aviation.
 * Scratch Wiki - wiki.scratch.mit.edu :A Wiki about the programming language Scratch.
 * ScriptsPedia - www.scriptspedia.org :A Wiki dedicated to open source code examples in various programming languages.
 * SDIY wiki - www.sdiy.info :A wiki for learning about DIY electronic musical instruments and related equipment.
 * SDW (Sleeping Dragons Wiki) - sleepingdragons.org/sdw :Documents campaigns by Sleeping Dragons, a private tabletop roleplaying group.
 * Seattle Wiki - seattlewiki.org :The city of Seattle and surrounding area
 * Second Life - wiki.secondlife.com :Official Second Life's Wiki
 * Second Life History Wiki - history.secondserver.net :Historical record for the 3D, online, chat-build, multi-user environment Second Life.
 * Sega Retro - http://segaretro.org :Encyclopedia of Sega-related media.
 * Seizam - www.seizam.com :Freedom to the Artists! Seizam is a creative and collaborative tool for art based on MediaWiki's philosophy and technology.
 * Selfhelpwiki - Selfhelpwiki.org :Self help Wiki .org is the premier self-help site concerning all self-help issues. It is a collaborative project from many ordinary people that know about self-help.
 * SEO Wiki - www.seo4india.co.in :For all SEO professionals, webmasters, Users and website owners.
 * ServerWiki - www.serverwiki.org :For Game Server Administrators, covers setup and installation of all different kinds of Game Servers on various Operating Systems.
 * SFWiki - http://sfwiki.org :Information for locals and travelers to the SF Bay area.
 * SgWiki - http://sgwiki.com/ :Singapore wiki, mostly about public transport there.
 * Shadowlack Codex - shadowlack.com/wiki :An original science fiction and fantasy world building (conworld) project.
 * Shadowrun : Awakened Wiki - awakenedmmo.org :Open-Source Shadowrun MMORPG
 * Shartak Wiki - http://www.shartak.com :Web-based MMPORPG, set on a mysterious island where natives and outsiders hunt and explore.
 * ShetlandDictionary.com - ShetlandDictionary.com :The Online Shetland Dictionary. Over 700 Shetland words that can be searched by Shetland to English or English to Shetland
 * Shetlopedia.com - Shetlopedia.com :The Shetland Encyclopedia. For all things Shetland related.
 * Shipwreckwiki.info - Shipwreck Wiki.info :Shipwrecks all around the world. Maps, divers opinion, books, etc.
 * Shobia - Shobia :Shopping guides and information, currently focused on watches.
 * Showiki - Showiki.com :Hollywood information for the current day artists.
 * ShropshireWiki - ShropshireWiki.com :A collaborative site dedicated to the county of Shropshire, England.
 * SICSR Wiki - SICSR Wiki :Wiki of Symbiosis Institute of Computer Studies and Research, Pune, India, having various technical and non technical articles contributed by the students themselves.
 * Sightseeing Wiki - www.sightseeingwiki.org :The greatest Places of Interest around the World.
 * Sikhi Wiki - sikhiwiki.org :Encyclomedia of the Sikhs
 * SilkRoad Online Wiki (invalid link) - silkroad.skenmy.com :Online MMORPG SilkRoad Online
 * Silverlight 3D wiki - sl3d.woodassoc.us :Silverlight 3D library wiki with description of all library namespace, class, functions, etc. and their uses.
 * Simulism - simulism.org :Wiki about Simulism
 * SiteRewriter Wiki - siterewriter.com :Site Help for all web sites
 * SkepticWiki - www.skepticwiki.org :Site the Encyclopedia of Science and Critical Thinking
 * SklogWiki - www.sklogwiki.org :A physics wiki for the thermodynamics, statistical mechanics, and computer simulation of materials, community.
 * SKYbrary - www.skybrary.aero :The single point of reference in aviation safety knowledge.
 * Skyshard Heroes Wiki - skyshardwiki :Wiki for the flash based MMO - Skyshard Heroes.
 * Slabscapedia - Slabscape.com :The future's out there.
 * Sleepedia - Sleepedia.org :Information about sleep, sleeping problems and sleeping aids.
 * Slowtwiki - http://www.slowtwitch.com/wiki :Wiki dedicated to endurance sports.
 * SmallBusiness.com - http://smallbusiness.com :Wiki resource for owners and managers of small businesses.
 * Smart OneHealth -Smart OneHealth :Wiki Source about Science behind Sleep and Rest
 * SmartLogic Solutions - smartlogicsolutions.com :SmartLogic Solutions is a software development and consulting firm. SLS specializes in creating data-driven web applications.
 * SmashWiki - http://www.ssbwiki.com/Main_Page :A wiki for the Nintendo game franchise Super Smash Bros.
 * SME Server - http://wiki.contribs.org/Main_Page :Official wiki for the SME Server.
 * Smite Wiki - Smite Wiki :Wiki dedicated to Hi-Rez Studios online computer game SMITE.
 * Snickipedia&#x3A; The Lemony Snicket Wikipedia - www.snicket.wikia.com :This is Wikipedia, but it has been Snickified- a word which here means "remodeled to only have stuff to do with Lemony Snicket".
 * Social Media Wiki - wiki.awakenedvoice.com :Documenting the world of social media.
 * Social Science Summary Database - adambrown.info/p/summaries :Collects summaries of scholarly books and articles, especially those relevant to political science.
 * Softview - SoftView.tk :Test site for MediaWiki and common extensions.
 * SolidsWiki - solidswiki.com :Equipment for Handling and Processing Bulk Solids.
 * Sonic Retro - http://info.sonicretro.org/ :Encyclopedia of Sonic The Hedgehog-related media.
 * SonikWiki - sonikmatter.com/wiki :Living documentation for the Sonikmatter Communities, including Kurzweil Synthesizers and Logic Audio.
 * Sonic-Planet - http://sonic-planet.ru/ :Russian Sonic-related encyclopedia.
 * Sons of the Thames - www.sonsrowing.org.uk :Sons of the Thames Rowing Club, Hammersmith.
 * Source Watch - sourcewatch.org :Directory of the people, organizations and issues shaping the public agenda. Focus on propaganda (formerly "Disinfopedia")
 * South Dublin Astronomical Society - southdublinastronomy.org :Amateur observational astronomy resource
 * Southeast Asia - Southeast-asia.jbdirectory.com :Encyclopedia of Southeast Asia
 * SpamWiki - spamtrackers.eu :This wiki, maintained by spamtracker.eu contributors, is devoted to understanding spam and how you can personally take action to create a spam-free world.
 * Spadout - Rock Climbing Gear :Spadout provides information about gear and techniques used in outdoor sports including rock climbing, backpacking and caving.
 * SpankWiki - SpankWiki :SpankWiki is a community driven porn/tube site based on MediaWiki.
 * SpartniaWiki! - SpartniaWiki :Was "wikiblue" :A wiki for an IRC channel
 * Speedypedia - en.speedypedia.info :A new free encyclopedia.
 * Spiderweb Roleplay Wiki - rpwiki.calref.co.cc :info on various online role plays.
 * Splunk product documentation - splunk.com/base/Documentation :Splunk's documentation team uses a super-customized MediaWki product documentation site with support for versioning and navigation. These customizations will be available as open source extensions soon, look for project PonyDocs!
 * SpongePedia - Home - SpongePedia :An extremely popular SpongeBob wiki with over 700 full Quality artices, with lots of fun. be sure to join! also in german
 * SpongyWiki - SpongyWiki.com :It's a wikipedia for SpongeBob - but a lot crazier. We have events, games, prizes, and much more coming soon. Please join and become part of the revolution!
 * SporeWiki - sporewiki.com :SporeWiki is the knowledge base dedicated to Spore - the computer simulation video game developed by Wright Will Wright
 * Sportiki - sportiki.com :A live, user-created site covering the world of sports.
 * SpottersWiki - SpottersWiki.com :Guide to airport spotting and photography locations
 * Square Mile Wiki - inthesquaremile.com :Information about the City of London
 * SDSC SRB Wiki - sdsc.edu/srb :Information about the San Diego Supercomputer Center's Storage Resource Broker (data grid software)
 * Stadtwiki Karlsruhe - ka.stadtwiki.net :city wiki for Karlsruhe, Germany
 * Stargate Wiki - stargate-wiki.org :Canon-only Stargate Wiki
 * Star Trek Online Wiki - STOWiki.org :Star Trek Online MMORPG Wiki
 * Stefan Zweig Bibliography Wiki - zweig.fredonia.edu :Stefan Zweig Bibliography Wiki
 * Stellarium Wiki – stellarium.org :Stellarium is a free planetarium for your computer
 * StrategyWiki - StrategyWiki.org :Collaborative source for copyleft video game FAQs, walkthroughs, and strategy guides.
 * Stunts Wiki - stunts.hu/wiki :Information, resources, history and whatever else related to the classic racing game Stunts (aka 4D Driving).
 * Sturmkrieg – Sturmkrieg landing page :Wikifarm about Warhammer 40,000.
 * http://www.sturmkrieg.us – English
 * http://www.sturmkrieg.de – Deutsch
 * http://www.sturmkrieg.ru – Русский
 * http://malleus-commons.sturmkrieg.com – Wikimedia Commons style wiki for 40k images
 * Sublime Portal, The - | sublimeportal.com :Expats forum and information about Turkey.
 * Substepr - Substepr.com :One of the first serious attempts at an open research website: Higher quality standards than WikiHow or eHow.
 * Suicide prevention - suicide-prevention.dummipedia.com :A source of information and resources for suicide prevention.
 * Sunnyday - sunnyday.su :Psychology, training, and self-improvement. (Russian)
 * Sunshine Review - SunshineReview.org :An encyclopedia dedicated to open government through the sunshine of transparency.
 * SketchUp Wiki - :The Unofficial Sketchup Wiki.
 * Sweetnam.eu - sweetnam.eu :Personal website of a I.T. Technical nature.
 * en.Swpat.org - en.swpat.org :The software patents wiki
 * SymbianWiki - SymbianWiki.com :An editable guide telling you All About Symbian.
 * SynSIG - synsig.org :promote the study of Speech Synthesis in general.
 * SynSIG - synsig.org :promote the study of Speech Synthesis in general.

T

 * Table Tennis Philippines - tatapx.org :Table Tennis Association of the Philipines Extension
 * Tamil Eelam Online - Tamil Eelam Online :Tamil Eelam Online is a news and online service that focuses on providing reliable and accurate information in Sri Lanka.
 * Talk Nightlife Wiki - wiki.talknightlife.com : The memory bank for the Talk Nightlife forum.
 * Tan Wiki - http://www.tanwiki.com
 * A collaborative website for all things related to sunbed tanning.


 * Teaching Open Source - teachingopensource.org
 * A neutral collaboration point for professors, institutions, communities, and companies to come together and make the teaching of Open Source a global success.


 * Teaching resource Wiki - www.teachersresourcebank.com : Teaching resources for Key Stage 1 & 2
 * Technical Analysis - Technical-Analysis.EU : Encyclopedia for Technical Analysis (Financial).
 * Team FREDNET - Open Source Development Wiki : Google Lunar X-Prize Open Space Competition team.
 * Team Fortress Wiki - wiki.teamfortress.com : Wiki site for anything related to the videogame Team Fortress 2
 * Teampedia - www.teampedia.net/wiki/index.php?title=Main_Page
 * A collaborative encyclopedia of free team building activities, icebreakers, teamwork resources, and tools for teams.


 * Technical Christmas - www.TechnicalChristmas.com : Technical Advanced Christmas Decorating
 * Technical Presentations - TechPresentations.org :Collection of conferences and presentations on various technical topics
 * Techotopia - Techotopia.org :A library of free on-line IT books
 * TechWikiToday - TechTalkToday.co.nr :A technology article database for the TechTalkToday forums.
 * TechWriterWiki - TechWriterWiki.com :A practical on-line reference for professional Technical Writers/Communicators.
 * TeflPedia - TeflPedia.com :Wiki for English teachers.
 * Telarapedia - Telarapedia : A wiki for the MMORPG Rift: Planes of Telara.
 * Teleradiology - Teleradiology : All news and discussion relating to the transmission of digitized medical images.
 * TelemarkWiki - Telemark Wiki : Telemark Skiing.
 * TeleWiki - www.BusinessPhonesDirect.com/wiki/ :Articles on business telecommunications including hardware, programming, compatibility, installation, companies.
 * Terra Nova Wiki - terranovawiki.org : Biggest and best reference wiki for Terra Nova.
 * Terraria Wiki - wiki.terrariaonline.com/ : The official Wiki for Terraria.
 * TESLibrary - www.teslibrary.com : A wiki site dedicated to all things Elder Scrolls, the Bethesda Softworks series of games (Arena, Daggerfall, Battlespire, Redguard, Morrowind, Bloodmoon, Tribunal, Oblivion, Knights of the Nine, Shivering Isles, etc.)
 * TFWiki - TFWiki.net : Knowledge database dedicated to the various Transformers characters, episodes, comics, and toylines.
 * Transformers Universe Wiki - transformersuniversewiki.net : Wiki about the online game.
 * The ABC DollWiki - The ABC DollWiki : A wiki on things related to dolls focusing on fashion dolls such as Barbie® dolls and Fashion Royalty®.
 * The Aquarium Wiki - The Aquarium Wiki : The encyclopedia of all things aquatic.
 * The Berries - The Berries :The Berries
 * The Chemistry Book - The Chemistry Book: An online chemistry textbook.
 * The Cutting Room Floor - The Cutting Room Floor: A wiki dedicated to finding unused and cut content in video games.
 * The Dead Linger Official Wiki - The Dead Linger Official Wiki : The official wiki of The Dead Linger, an open world zombie survival game by Sandswept Studios.
 * The Five Pillars Wiki- The Five Pillars Wiki : A wiki about the online multiplayer game The Five Pillars.
 * The Funny Wiki - The Funny Wiki : A wiki that you can put anything you want on, a kid work and school safe uncyclopedia.
 * The Ginever Block - TGBwiki : The TGBwiki is the development wiki for Pokémon Crimson.
 * The Halo Wiki - The Halo Wiki: a wiki dedicated to the Halo Trilogy..
 * The Hidden Wiki - Only on Tor.
 * The Infosphere - theinfosphere.org :A wiki for all Futurama related info.
 * The IT Community - www.theitcommunity.com :The wiki knowledge base from IT guys, for IT guys.
 * The Kim Stanley Robinson Encyclopedia - The Kim Stanley Robinson Encyclopedia :A New project documenting the works of author Kim Stanley Robinson.
 * The Mana World - The Mana World Wiki : TMW is a 2D MMORPG. Wiki document gaming and development aspects.
 * The Mickey Wiki - The Mickey Wiki :Unofficial encyclopedia on everything Walt Disney World
 * The Pet Wiki - The Pet Wiki :Info about pets and how to care for them.
 * The Programmers Wiki - theprogrammerswiki.org :Any general topic concerning computer programming.
 * The Real Fiction - www.therealfiction.net :A wiki about a World of Warcraft Game Community "TRF 3.3.3a" WOW
 * The Spaghetti Western Database - www.spaghetti-western.net:The biggest English-language encyclopedia of European Western Cinema
 * The Wiki Fire - The Wiki Fire : The unofficial, free encyclopedia of Knox College in Galesburg, IL
 * Theatre Support Systems Wiki - TheatereSupportSystems : A web site devoted to providing technical support documentation for Center Stage Softwares Wintix and Tixsale Box-office Ticketing system.
 * Theobio Wikis at McMaster University - Projects; Dushoff Lab; Worden : Over 100 wikis for research collaborations. Home of the WorkingWiki extension for wikis supporting collaborative coding and authoring of publication-quality manuscripts
 * ThetisWiki - ThetisWiki : A parody planet with humurous articles
 * The Trail Wiki - TheTrailWiki.org :A Compilation of Maps and Experience documenting a multitude of Trails and Backpacking routes around the world.
 * The Fish Wiki - The-Fish-Wiki.com :The wiki of all thing aquatic form reefs to cold water you name it we have got it.
 * The Ultimate Comment - TheUltimateComment.com :Postmodern investigation of the Secret of the Universe
 * Thinkerpedia - thinkerpedia.net :The critical thinking wiki
 * ThinkNOLA Wiki thinknola.com :Wiki guide to life in New Orleans, post-Katrina
 * ThinkWiki - thinkwiki.org :Linux distributions on IBM/Lenovo ThinkPads
 * This Might Be A Wiki - tmbw.net :Wiki for all things They Might Be Giants
 * Thistlepedia - wiki.thethistle.org :Thistle yearbook's wiki
 * Till Kraemer Encyclopedia en.till-kraemer.com/wiki : Encyclopedia without notability guidelines
 * TinyMCE step by step - rorlach.de :Documentation and examples for the TinyMCE webeditor
 * TipCollection - tipcollection.com :Tips, tutorials and how-to guides to help make life easier.
 * Togepedia - togepedia.net :With happiness we share Pokémon information.
 * Tolkien Gateway - tolkiengateway.net :Currently the largest encyclopedia about J.R.R. Tolkien and his works.
 * Toronto Wiki - wikito.org :Toronto Restaurants, Cafes, Bars, Clubs, Attractions, Real Estate, Shopping, City Life and more
 * Total Commander Wiki - www.ghisler.ch/wiki :Knowledge base for Total Commander, famous file manager software for Windows
 * Total Malware Info - totalmalwareinfo.com :Malware descriptions: viruses, trojans, worms, backdoors, and spam; removal instructions; papers on computer security; provided by Design and Test Lab
 * Tracklists.org - tracklists.org :User contributed DJ Set Tracklistings
 * Track2Asia - www.track2asia.com :Travel guide for Asia allowing travelers to share their experiences, upload photos, and provide other travelers with insight information about destinations in Asia.
 * Trail WIKI - TrailWIKI.org : A collaboration of trails across the United States.
 * Trailville - trailville.com : Hiking Trails, Cross Country Ski Trails, Bike Paths, Mountain Bike Trails, and Canoe & Kayak Water Trails.
 * Translatewiki.net translatewiki.net :Free Open Source Software localisation wiki-style
 * Transpedia Transpedia.ca :Free Encyclopedia of Gender Expression and Presentation
 * Travel and Tours Guide - www.travelandtoursguide.com :Imagine planning your next trip based on the sum of all knowledge from millions of travellers and tourists around the world. - That's our vision.
 * Trauma and Dissociation project - www.dissociative-identity-disorder.net :A wealth of information about the mental disorders caused by trauma
 * Tremulous - tremulous.net/wiki: Documentation wiki for the open source game Tremulous
 * Trunkmonkey Racing - www.trunkmonkeyracing.com/wiki:Trunkmonkey Racing's race team operations and logistics guide
 * TSR Wiki - thestudentroom.co.uk :The Student Room, Information for students
 * Tubeopedia - Tubeopedia.com :Everything you ever wanted to know about vacuum tubes, the equipment and circuits that use them and theory about them.
 * Tulipedia - tulipedia.org :Encyclopedia on Calvinism
 * TurboTax Free - TurboTax Free :TurboTax resources to help the community save time and money.
 * The TV IV - tviv.org :An online compendium of television knowledge
 * The Star Wars Podcasting Guide - TSWPG :A wiki to help podcasters or prospective podcasters.
 * Thilopedia - www.thesecondbestfanpageintheuniverse.com :A wiki made by fans of Thilo Savage, who was deleted from wikipedia due to a grave miscalculation.
 * Things You Should Know About - Tyska.net :Tyska is collaborative writing project focused on providing our readers only the most important and actionable information on any given topic.
 * T-Vox - t-vox.org :Information, advice and support group from transgendered, intersexed and genderqueer people.
 * TelenovelaWiki - telenovelawiki.com :Read full information on thousands of Telenovelas.

U

 * UBC Wiki - UBC Wiki : The University of British Columbia Wiki.
 * UgandaWiki - ugandawiki.ug :The Uganda online encyclopedia.
 * UK Online Takeaway - ukonlinetakeaway.com : UK site for online takeaways
 * ukcider - ukcider.co.uk/wiki :A wiki about different types of cider and perry.
 * UK Citizens' Online Democracy - www.ukcod.org.uk : Website for the charity UK Citizens Online Democracy.
 * ukdiy - wiki.diyfaq.org.uk :Frequently Asked Questions for the uk.diy Newsgroup
 * UKGameshows - ukgameshows.com :Information on British television and radio game shows and people associated with them
 * UMassWiki - umasswiki.com :Wiki for the University of Massachusetts Amherst community
 * Uncyclopedia - en.uncyclopedia.co :Satirical parody of Wikipedia, see Uncyclopedia.
 * Unified Republic of Stars - unifiedrepublicofstars.com/wiki :A collaborative story telling project based around a new and unique science-fiction world.
 * United Federation of Trek Encyclopedia - fedtrek.com/wiki :A sci-fi/fantasy wiki
 * United Nations Development Programme (UNDP) - WaterWiki: On-line knowledge map and collaboration tool for the UNDP-Water-Community of Practitioners in Europe & CIS
 * Uniting Amendment - Uniting Amendment :The comprehensive amendment to the Constitution written by the citizens of the United States
 * Unofficial Elder Scrolls Pages (UESP) - uesp.net :The wiki about the Elder Scrolls series of games.
 * Unofficial TransGaming Wiki - cedegawiki.sweetleafstudios.com : A collection of information about using Cedega, which allows many Windows games to be played on Linux. Consists mainly of a database of games that have been tested on Cedega.
 * Unmaintained Free Software - unmaintained-free-software.org :Unmaintained/orphaned Free Software projects which are in need of a new maintainer
 * UOGuide - UOGuide.com :An encyclopedia on the MMORPG Ultima Online
 * Ubuntu Document Storage Facility -UDSF :A documentation Wiki for Ubuntu Linux
 * Urban Dead Wiki - http://www.urbandead.com : A Massively Multi-Player Web-Based Zombie Apocalypse. MMPORPG.
 * Utah Dogs Wiki - http://www.utahdogs.com/wiki/ :Information for Dogs and their people in Utah.
 * uCoz Wiki - http://www.uwiki.org.ua/ :Online Manual for uCoz - Free Hosted CMS.
 * uCtrl.net - http://uctrl.net :Wiki for electronics and microcontroller projects.

V

 * Valve Developer Community - developer.valvesoftware.com :Information about Valve's SDK and Tools
 * Vanipedia - vanipedia.org/wiki/Main_Page :is a dynamic, interactive encyclopedia of all the teachings of Śrīla Prabhupāda - The founder Acharya of the Hare Krishna movement who taught the science of devotional service rendered to God.
 * VAPus vapus.net/wiki :OpenTibia related articles
 * Venture the Void Online Documentation - venturethevoid.com :Online documentation for space exploration MMORPG
 * Vicksburg Fire Department - vicksburgfd.com :A wiki for the use of and about the Vicksburg Fire Department in Vicksburg, MS.
 * Vicloronomicon - wiki.arcandio.com :A growing wiki of role-playing game material
 * Video Game Music Covers Wiki - video-game-music-covers.wikia.com :A wikia about VGM Cover Artists
 * Videoville - [http:/ /www.videoville.org/wiki videoville.org] :A wiki for cool music videos.
 * The Vim wiki - vim.wikia.com :A wiki dedicated to the cross-platform Vim editor
 * Vindemi - Vindemi.com :A wiki dedicated to Antiques and Vintage Items.
 * Vistahires - vistahires.com :Hiring site for Vistaprint
 * Visual KoL - kol.coldfront.net/thekolwiki/index.php/Main_Page :Information about the online role-playing game, Kingdom of Loathing.
 * The Voxel Box Wiki (VoxelWiki) - voxelwiki.com :The official wiki of The Voxel Box Minecraft community.
 * The Free Voyeurweb's Wiki System - Voyeurweb's Wiki :It is a richly pictured and fully searchable interactive knowledge base base done by the Voyeurweb community for the Voyeurweb community. This Wiki system grows every hour as more and information, text and pictures are added by people like me and you
 * vtiger CRM - vtiger Wiki :Documentation project for the vtiger CRM business users and developers
 * Unofficial Vyatta Wiki - vyattawiki.net :A wiki about Vyatta open source router
 * Vage - va-ge.com :Interior Design Ideas

W

 * Watch-Wiki :The free watch encyclopedia in several languages - is an on-line reference about watches.
 * WebPlatform - docs.webplatform.org : Community-driven site that aims to become a comprehensive and authoritative source for web developer documentation.
 * WeRelate - werelate.org : The world's largest genealogy wiki
 * Wesnoth - wiki.wesnoth.org :Website and wiki for the Battle for Wesnoth project, a free turn-based strategy game
 * Whackpedia - whackpedia.com :A content and discussion forum for vertical integration of worldwide discussions and more
 * Where to See Wildlife - wheretosee.org/wildlife/Main_Page :A website dedicated to finding the best locations to see wildlife.
 * Who Bought Who - whoboughtwho.org :The definitive list of where companies went, who bought them swallowed them up or did they go bust!
 * Wicked Campers - wickedcampers.com.au :Campervan Hire Australia
 * WICWiki - www.wicwiki.org.uk :Christian website which contains over 25,000 articles, covering a variety of subjects.
 * Wikademia - Wikademia.org :a site for learning, research, and project collaboration
 * Wiki24 - 24.wikia.com :Everything there is to know about the hit television series 24
 * WikiVS - wikivs.com: Comparison of two producs, software, …
 * Wiki4Games - Wiki4Games.com : A wiki about video games.
 * Wikia - www.wikia.com :A network of MediaWiki sites on many topics
 * WikiAudio - WikiAudio.org : User created Encyclopedia and database project for all things audio or sound related.
 * Wikiasiantravel - Wikiasiantravel.org :Your ultimate guide to travel to Asia, with sights to see, accommodation details, places to dine, shopping spree locations, news, Great Deals and more!
 * wikiBest - wikibest.com :A list of the best items.
 * WikiChip - WikiChip.org :A computer-related knowledgebase
 * WikiDance - WikiDance.org : A directory of dance related groups. Bands, teachers and Clubs.
 * WikiDifferences- : A difference-between manual.
 * WikiDrivers - Wikidrivers :Device drivers for video, sound, storage, networking and input devices, chipsets and CPUs.
 * Wiki Farming - wikifarming.org :A Manual on Agriculture
 * Wikifashion- wikifashion.com :Where fashion lovers can catalogue clothes, designers, shows and all things fashion.
 * WikiForGood - wikiforgood.org :Guide to social and environmental progress
 * Wikifund - wikifund.info :Wikifund is a forum for sharing good practice and ideas in fundraising and non-profit management.
 * Wikigogy - wikigogy.org :to write TEFL TESL TESOL English teaching lesson materials and ideas
 * Wiki-Gore-Pedia (Wikipedia Goregrind) - www.goregrind.com/wiki : a complete encyclopedia of goregrind music
 * WikiGTA - WikiGTA.org : Grand Theft Auto Walkthrough
 * wikiHotel - wikihotel.com :A hotel guide.
 * wikiHow - wikihow.com :A How-To Manual
 * WikiIslam - WikiIslam :Online resource with articles on various areas of Islam based on its own sources, the Qur'an, hadith and Islamic scholars.
 * WikiJava - WikiJava.net :The Wiki about Java, on WikiJava you can find all the code samples and tutorials about the most powerful programming language in the world.
 * WikiKrishna - www.wikikrishna.com: Wiki of Hindu vedic scriptures, songs, lyrics, etc.
 * WikiLectures - www.wikilectures.eu: Online study materials for medical students.
 * WikiLou - www.wikilou.com :A collaborative wiki about St. Louis, Missouri and the surrounding area.
 * WikiMama - www.wikimama.com/recipe :A wiki project aimed at collecting tested and comparable recipes with photos and videos.
 * WikiMANNia - en.wikimannia.org :wiki site dedicated to the knowledge of discrimination.
 * Wikimbad - wikimbad.org :A wiki for sharing reduced and published astronomical data.
 * WikiNoah - www.WikiNoah.org :Welcome, newcomers to WikiNoah. Everything worthwhile to know about the Bnei Noach movement. The Online Encyclopedia about the Noahide movement created by observant Noahides and Jews.
 * Wikipages- wikipages.com :Business directory for NYC and other cities.
 * WikiPathways - WikiPathways.org :Biological pathways curated by the scientific community.
 * WikiQueer - WikiQueer.org :Encyclopedia and resource hub project specifically for and by the lesbian, gay, bisexual, transgender, questioning, and allied communities.
 * Wikireedia - wikireedia.net :Academic and general interest site
 * Wikisimpsons - Simpsonswiki.net :The best Simpsons wiki on the internet.
 * WiKirby - WiKirby :It's a wiki. About Kirby. Stylish wiki documenting Nintendo's Kirby game franchise.
 * WikiRun - wikirun.com :A running encyclopedia.
 * Wiki-Scene - wiki-scene.com :A collection of tutorials guides and information on video game console hacking and modification.
 * WikiScope - wikiscope.org : WikiScope is a freely available portal for microscopy, spectroscopy and bioimaging.
 * Wikishire - wikishire.co.uk: A wiki about Britain, Ireland and the British territories.
 * Wiki-site - wiki-site.com:Wiki-Site.com allows you to open and manage a free wiki site.
 * WikiSki - wikiski.com : A global guide to Snow Sport & Snow Resorts.
 * Wikisocion - wikisocion.org : Encyclopedia of socionics
 * WikiSummary - WikiSummary : Summaries of Academic Books and Articles
 * WikiTree - WikiTree.com : Worldwide collaborative family tree.
 * Wikiwrimo - wikiwrimo.org :A wiki for everything related to National Novel Writing Month, Script Frenzy, and the Office of Letters and Light.
 * WinMerge Wiki - wiki.winmerge.org :A wiki for WinMerge development
 * Wireless Africa - wirelessafrica.meraka.org.za :Home of the CSIR, Wireless Africa, Community Owned Information Network.
 * Without Vowels - withoutvowels.org :Site for researching all meanings of Old Testament without vowels.
 * Wixpert - www.Wixpert.com :A commercial encyclopedia wiki that lets writers make money for their work.
 * The Wonderful Wiki of Eamon - eamononline.com/wiki: Public wiki for the classic Eamon text adventure series and other related games.
 * Wookieepedia - starwars.wikia.com:Wiki about Star Wars run by Wikia
 * WordPress Codex - codex.wordpress.org :Online Manual for WordPress
 * World Wind Wiki - worldwindcentral.com :Knowledge base about NASA's World Wind
 * Wowpedia - Wowpedia.org :The game World of Warcraft, by Blizzard Entertainment.
 * WikiCancel - WikiCancel.org : Wiki with guides on how to cancel contracts and subscriptions with major companies.
 * WikiSubculture - WikiSubculture.org : Wiki for global subcultures.
 * Wikisaur Wikisaur :Own Random Wikisaur.

X

 * XFamily - Children of God - xFamily.org :a collaboratively edited encyclopedia about The Family/Children of God cult.
 * XeNTaXWiki - wiki.xentax.com :The world's largest repository of Game Resource Archive Format (GRAF) information. Expanding to non-GRAF formats as well.
 * XC CoasterWiki - wiki.xtremecoastin.com :The largest resource of Roller Coaster and Amusement Industry information.
 * XMLTV GUI Wiki - birtles.org.uk :Documentation for the XMLTV GUI grabber
 * XMSWiki - xmswiki.com :Help and documentation for XMS software (GMS, SMS and WMS).

Y

 * Yellpedia - Yellpedia : The first complete United States Yellow Pages that's also a wiki. Over ten million listings (pages) waiting to edited.
 * YoMo - www.wiki.ufz.de :Young Modellers in Ecology. Scientific network, knowledge exchange.
 * YourSexWiki - Yoursexwiki : Illustrated Wiki Project about all aspects of sexuality
 * Youth Rights Network - youthrights.net :A discussion of youth rights, led by the National Youth Rights Association.
 * Yo-Yo Wiki - yoyowiki.org :Information about the toys called Yo-yo
 * YoYo Games Game Maker Wiki — yoyogames.com :Сreation of games with Game Maker

Z

 * Z64 Wiki - wiki.spinout182.com :N64 Zelda hacking wiki.
 * Zelda Wiki.org - Zelda Wiki.org :A group effort of several fan sites to cover the games of The Legend of Zelda series.

MediaWiki-ready hosts
Some hosts in alphabetical order: ... or any other host using PHP/MySQL
 * MediaWiki Optimized Web Hosting Providers. Comparisons.
 * 1&1 Internet
 * BlueHost
 * FusionHost
 * Host Color
 * Hostingplex
 * HostMonster
 * Hurricane Electric
 * IXWebHosting
 * LoopByte
 * Midphase
 * MyWikis
 * MilesWeb★
 * Omnis Hosting
 * Vistapages
 * Web Hosting Hub