Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
The Workplace
Q&A for members of the workforce navigating the professional setting
Puzzling
Q&A for those who create, solve, and study puzzles
Stack Overflow
Q&A for professional and enthusiast programmers
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Academia
Q&A for academics and those enrolled in higher education
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Ask Patents
Q&A for people interested in improving the patent system
Personal Finance & Money
Q&A for people who want to be financially literate
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Writing
Q&A for the craft of professional writing, including fiction, non-fiction, technical, scholarly, and commercial writing
Software Quality Assurance & Testing
Q&A for software quality control experts, automation engineers, and software testers
Arqade
Q&A for passionate videogamers on all platforms
Super User
Q&A for computer enthusiasts and power users
Ask Ubuntu
Q&A for Ubuntu users and developers
Server Fault
Q&A for system and network administrators
Politics
Q&A for people interested in governments, policies, and political processes
Chess
Q&A for serious players and enthusiasts of chess
Movies & TV
Q&A for movie and TV enthusiasts