Server Fault
Q&A for professional system and network administrators
Stack Overflow
Q&A for professional and enthusiast programmers
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Photography
Q&A for professional, enthusiast and amateur photographers
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Mathematics
Q&A for people studying math at any level and professionals in related fields
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
Personal Finance & Money
Q&A for people who want to be financially literate
Writers
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
