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
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Mathematics
Q&A for people studying math at any level and professionals in related fields
Web Applications
Q&A for power users of web applications
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Game Development
Q&A for professional and independent game developers
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Photography
Q&A for professional, enthusiast and amateur photographers
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
User Experience
Q&A for user experience researchers and experts
Programmers
Q&A for professional programmers interested in conceptual questions about software development
The Workplace
Q&A for members of the workforce navigating the professional setting
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Software Quality Assurance & Testing
Q&A for software quality control experts, automation engineers, and software testers
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi