I'm not yet strong enough to be perfect. But I will make a dent in the universe. Mark my words.
Stack Overflow
Q&A for professional and enthusiast programmers
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Server Fault
Q&A for professional system and network administrators
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Ask Different
Q&A for power users of Apple hardware and software
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Game Development
Q&A for professional and independent game developers
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Mathematics
Q&A for people studying math at any level and professionals in related fields
Web Applications
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User Experience
Q&A for user experience researchers and experts
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Computational Science
Q&A for scientists using computers to solve scientific problems
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Computer Science
Q&A for students, researchers and practitioners of computer science
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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
