Artificial Intelligence
Q&A for people interested in conceptual questions about life and challenges in a world where "cognitive" functions can be mimicked in purely digital environment
Mathematics
Q&A for people studying math at any level and professionals in related fields
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Stack Overflow
Q&A for professional and enthusiast programmers
Computer Science
Q&A for students, researchers and practitioners of computer science
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Music Fans
Q&A for music historians, critics, and fans
Economics
Q&A for those who study, teach, research and apply economics and econometrics
Computational Science
Q&A for scientists using computers to solve scientific problems
Bitcoin
Q&A for Bitcoin users, developers, and enthusiasts
Video Production
Q&A for engineers, producers, editors and enthusiasts spanning the fields of video and media creation
Academia
Q&A for academics and those enrolled in higher education
Code Review
Q&A for peer programmer code reviews
History
Q&A for historians and history buffs
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Ask Ubuntu
Q&A for Ubuntu users and developers
Movies & TV
Q&A for movie and TV enthusiasts
Cross Validated
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Super User
Q&A for computer enthusiasts and power users
Physics
Q&A for active researchers, academics and students of physics
Biology
Q&A for biology researchers, academics, and students