a list of all rooms, recently active rooms first
General Discussion for http://programmers.stackexchange.com Pants optional when telecommuting.
General discussion for http://unix.stackexchange.com. If you have a question, see http://unix.stackexchange.com/questions/ask
Everything Minecraft. We have a DW20 1.7.10 server: mc.echoreply.us There's some extra mods: http://mc.echoreply.us/extra_mods/
Game development and other polite discussion. Please don't star trivial messages.
General chat for Physics Stack Exchange (http://physics.stackexchange.com/). For MathJax use http://meta.math.stackexchange.com/a/3297#3297
General discussion about Code Review -> http://codereview.stackexchange.com/
Main chat room for http://worldbuilding.stackexchange.com
General Arqade chat room, wherein we meanwhile links, verb words, unhack life, and attempt to avoid Friday.
General discussion around Ask Ubuntu, Ubuntu & official Ubuntu derivatives. For other Linux distros please see: http://chat.stackexchange.com/rooms/26/unix-and-linux
All Monster Hunter talk, all the time. Or, just about anything, really.