Extension:WhoIsOnline

WhoIsOnline shows which or how many users have been logged-in in the last 10 minutes.

Usage / features

 * displays a list of logged-in users
 * displays the number of logged-in users
 * tags can be integrated on content pages
 * shows currently logged-in users in a popup when hovering over a link
 * or   shows the number of logged-in users