Nescire autem quid ante quam natus sis acciderit, id est semper esse puerum. Quid enim est aetas hominis, nisi ea memoria rerum veterum cum superiorum aetate contexitur? -- Cicero, Marcus Tullius (106-43BC)
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Personal Productivity
Q&A for people wanting to improve their personal productivity
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Software Quality Assurance & Testing
Q&A for software quality control experts, automation engineers, and software testers
Mathematics
Q&A for people studying math at any level and professionals in related fields
Writers
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
French Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language
Server Fault
Q&A for professional system and network administrators
Physics
Q&A for active researchers, academics and students of physics
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games