Chinese Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Chinese language
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Academia
Q&A for academics and those enrolled in higher education
Writers
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
Stack Overflow
Q&A for professional and enthusiast programmers
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Physics
Q&A for active researchers, academics and students of physics
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Personal Productivity
Q&A for people wanting to improve their personal productivity
LEGO® Answers
Q&A for LEGO® and building block enthusiasts
Personal Finance & Money
Q&A for people who want to be financially literate
Audio-Video Production
Q&A for engineers, producers, editors, and enthusiasts spanning the fields of audio, video, and media creation
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
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites