a list of all rooms, recently active rooms first
Everything Minecraft. Warning: Exposure may cause insanity and/or chickens.
For discussion about programming, math, and science, and related topics. Not about PPCG (the site itself) or golfing.
Discussion on differential equations, dynamical systems, chaotic systems, non-linear dynamics.For rendering LaTeX http://www.math.ucla.edu/~robjohn/math/mathjax.html
Discussion regarding Hinduism StackExchange moderation. You can also ping/ask moderators. If you don't have the write access here, you can request for it and/or discuss in the main room.
theoretical computer science. highlight reel https://vzn1.wordpress.com/chat/
Multipartition system on Windows in Ubuntu installer
One does not simply speak English 24/7. (This is the german Fork of the Periodic Table: http://chat.stackexchange.com/rooms/3229/the-periodic-table)
All Monster Hunter talk, all the time. Or, just about anything, really.
For any questions/help/experiments with MathJax. Bookmarklet: http://www.math.ucla.edu/~robjohn/math/mathjax.html
General discussion for http://softwarerecs.stackexchange.com
For functional analysis, measure theory, and related areas. MathJax in chat: http://www.math.ucla.edu/~robjohn/math/mathjax.html
General discussion for http://academia.stackexchange.com