a list of all rooms, recently active rooms first
conversation about http://packagedata.net/, a Mathematica package repository
Room for the people collaborating on The Game Where You Don't Know Anything. Repo: https://github.com/TARDIS-Maker/The_Game_Where_You_Don-t_Know_Anything
This room is NOT for 'Live Support', Please ask on the main site. Thank you!
Where the editors drink coffee and try to get things done!
a place to discuss whatever this is: http://puzzling.stackexchange.com/questions/26088/a-purely-numerical-sequence-with-a-hint-of-the-visual
A room for Worldbuilders to play around with bots without annoying anyone.
General discussion for http://meta.matheducators.stackexchange.com
Anything related to set theory. For instructions how to render MathJax(TeX) in chat see http://meta.math.stackexchange.com/a/3297
General chat room for the History of Science and Mathematics StackExchange (http://hsm.stackexchange.com/)
Please don't ask if anyone is here or if you can ask questions. Just ask your question. Someone will answer it if they can. Also, do not just post links to your question on the main website asking users to help you. They will be removed.
Discussion related to https://github.com/alerque/stack-verse-mapper whether development or usage.
For discussions about our community blog: http://math.blogoverflow.com/