Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Super User
Q&A for computer enthusiasts and power users
Stack Overflow
Q&A for professional and enthusiast programmers
Vi and Vim
Q&A for people using the vi and Vim families of text editors
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Puzzling
Q&A for those who create, solve, and study puzzles
Ask Different
Q&A for power users of Apple hardware and software
Hardware Recommendations
Q&A for people seeking specific hardware recommendations
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Information Security
Q&A for information security professionals
Computer Science
Q&A for students, researchers and practitioners of computer science
Mathematics
Q&A for people studying math at any level and professionals in related fields
Physics
Q&A for active researchers, academics and students of physics
Politics
Q&A for people interested in governments, policies, and political processes
English Language Learners
Q&A for speakers of other languages learning English
Network Engineering
Q&A for network engineers
Open Source
Q&A for people organizing, marketing or licensing open source development projects
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
Arqade
Q&A for passionate videogamers on all platforms
Computer Science Educators
Q&A for those involved in the field of teaching Computer Science
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Aviation
Q&A for aircraft pilots, mechanics, and enthusiasts
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
Photography
Q&A for professional, enthusiast and amateur photographers
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Astronomy
Q&A for astronomers and astrophysicists
Economics
Q&A for those who study, teach, research and apply economics and econometrics
Game Development
Q&A for professional and independent game developers
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Computer Graphics
Q&A for computer graphics researchers and programmers
Space Exploration
Q&A for spacecraft operators, scientists, engineers, and enthusiasts
Academia
Q&A for academics and those enrolled in higher education
Server Fault
Q&A for system and network administrators
User Experience
Q&A for user experience researchers and experts
Code Review
Q&A for peer programmer code reviews
Retrocomputing
Q&A for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear
Programming Language Design and Implementation
Q&A for designers and implementers of computer programming languages