a list of all rooms, recently active rooms first
Discussion related to the development of the IntelliJIDEA plugin for Mathematica https://github.com/halirutan/Mathematica-IntelliJ-Plugin
Room for unresolved bounties. Please read the rules first: https://math.meta.stackexchange.com/q/23647#23715
A place to test potentially dangerous inventions. Chat bots, robots, artificial intelligence and thought experiments are what this place is about. Post your crazy ideas and chat bot features here!
How to solve Failed to load resource: the server responded with a status of 503 (Service Unavailable)
API, apps, and scripts that work on http://stackexchange.com/sites
To discuss the site's blog, blog post ideas, and other bloggy things. Contact JackBNimble, KutuluMike or CreationEdge with your blog concerns.
General chat room for the History of Science and Mathematics StackExchange (http://hsm.stackexchange.com/)
For discussion of http://pxls.space/ and coordinating PPCG-related artwork for it. **Disclaimer**: Pxls.space may contain user submitted content that is offensive or NSFW. This content is not officially sanctioned by PPCG or Stack Exchange.
Mathematical analysis of equilibria and related metaphysical implications
Discussion of Processtack: https://github.com/hjroh0315/Processtack