Wikimedia Discovery

The Search and Discovery Department of Wikimedia Engineering works on search and discovery.

Cirrus Search
The CirrusSearch extension implements searching for MediaWiki using Elasticsearch.

OpenStreetMap
The OpenStreetMap/Production maps cluster is a project to make OpenStreetMap available on all Wikimedia projects, at a scale sufficient for their widespread usage.

Wikidata Query Service (WDQS)
Wikidata query service provides a way for tools like WikiGrok to access Wikidata data, via a SPARQL API.

Mailing List
Wikimedia-search

Meeting Minutes
Wikimedia Search Team/Meeting Minutes