Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Academia
Q&A for academics and those enrolled in higher education
Stack Overflow
Q&A for professional and enthusiast programmers
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Bicycles
Q&A for people who build and repair bicycles, people who train cycling, or commute on bicycles
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Photography
Q&A for professional, enthusiast and amateur photographers
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Russian Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Russian language
Computer Science
Q&A for students, researchers and practitioners of computer science
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
