Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Cognitive Sciences
Q&A for practitioners, researchers, and students in cognitive science, psychology, neuroscience, and psychiatry
Biology
Q&A for biology researchers, academics, and students
Philosophy
Q&A for those interested in logical reasoning
English Language Learners
Q&A for speakers of other languages learning English
Mathematics
Q&A for people studying math at any level and professionals in related fields
Linguistics
Q&A for professional linguists and others with an interest in linguistic research and theory
Physics
Q&A for active researchers, academics and students of physics
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Server Fault
Q&A for professional system and network administrators
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Audio-Video Production
Q&A for engineers, producers, editors, and enthusiasts spanning the fields of audio, video, and media creation
Computer Science
Q&A for students, researchers and practitioners of computer science
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
Motor Vehicle Maintenance & Repair
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
