Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Server Fault
Q&A for professional system and network administrators
Personal Productivity
Q&A for people wanting to improve their personal productivity
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Physics
Q&A for active researchers, academics and students of physics
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Game Development
Q&A for professional and independent game developers
Genealogy & Family History
Q&A for expert genealogists and people interested in genealogy or family history
Musical Practice & Performance
Q&A for musicians, students, and enthusiasts
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
