a list of all rooms, recently active rooms first
In pursuit of a comprehensive taxonomy of game mechanics. Current taxonomy is here: http://play.starmaninnovations.com/gamemechtaxonomy/
Anything related to set theory. For instructions how to render MathJax(TeX) in chat see http://meta.math.stackexchange.com/a/3297
Discussion and live watching of "The Time Traveller's Wife"
Discussion pour http://french.stackexchange.com. Bienvenue à tous ! You may speak English, too.
User Experience (http://ux.stackexchange.com) community chat room: talk about user experience design, user interface design, visual design, usability, accessibility, and any related topics.
General discussion for http://stackexchange.com
General chat room for the History of Science and Mathematics StackExchange (http://hsm.stackexchange.com/)
General discussion for http://pets.stackexchange.com. Pet gifs welcome.