Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Server Fault
Q&A for professional system and network administrators
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Programmers
Q&A for professional programmers interested in conceptual questions about software development
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
User Experience
Q&A for user experience researchers and experts
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Homebrewing
Q&A for dedicated home brewers and serious enthusiasts
Musical Practice & Performance
Q&A for musicians, students, and enthusiasts
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
