Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Stack Overflow
Q&A for professional and enthusiast programmers
Libraries & Information Science
Q&A for librarians and library professionals
Server Fault
Q&A for professional system and network administrators
Physics
Q&A for active researchers, academics and students of physics
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Photography
Q&A for professional, enthusiast and amateur photographers
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Academia
Q&A for academics and those enrolled in higher education
Personal Finance & Money
Q&A for people who want to be financially literate
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
Ask Different
Q&A for power users of Apple hardware and software
Programmers
Q&A for professional programmers interested in conceptual questions about software development
