Christianity
Q&A for committed Christians, experts in Christianity and those interested in learning more
Game Development
Q&A for professional and independent game developers
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Physics
Q&A for active researchers, academics and students of physics
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Photography
Q&A for professional, enthusiast and amateur photographers
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
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
User Experience
Q&A for user experience researchers and experts
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
Biblical Hermeneutics
Q&A for professors, theologians, and those interested in exegetical analysis of biblical texts
Personal Finance & Money
Q&A for people who want to be financially literate
The Workplace
Q&A for members of the workforce navigating the professional setting