Stack Overflow
Q&A for professional and enthusiast programmers
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Super User
Q&A for computer enthusiasts and power users
Web Applications
Q&A for power users of web applications
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
WordPress Development
Q&A for WordPress developers and administrators
Server Fault
Q&A for system and network administrators
Information Security
Q&A for information security professionals
Vi and Vim
Q&A for people using the vi and Vim families of text editors
Video Production
Q&A for engineers, producers, editors and enthusiasts spanning the fields of video and media creation
Sustainable Living
Q&A for folks dedicated to a lifestyle that can be maintained indefinitely without depleting available resources
The Great Outdoors
Q&A for people who love being outdoors enjoying nature and wilderness, and learning about the required skills and equipment
Code Review
Q&A for peer programmer code reviews
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Reverse Engineering
Q&A for researchers and developers who explore the principles of a system through analysis of its structure, function, and operation
Network Engineering
Q&A for network engineers
Politics
Q&A for people interested in governments, policies, and political processes
Academia
Q&A for academics and those enrolled in higher education
Ask Different
Q&A for power users of Apple hardware and software
English Language Learners
Q&A for speakers of other languages learning English
Personal Finance & Money
Q&A for people who want to be financially literate
Software Quality Assurance & Testing
Q&A for software quality control experts, automation engineers, and software testers
Bitcoin
Q&A for Bitcoin users, developers, and enthusiasts
Seasoned Advice
Q&A for professional and amateur chefs
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Photography
Q&A for professional, enthusiast and amateur photographers
Freelancing
Q&A for self-employed and freelance workers
Pets
Q&A for pet owners, caretakers, breeders, veterinarians, and trainers
Computer Science
Q&A for students, researchers and practitioners of computer science
Tor
Q&A for researchers, developers, and users of Tor
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Blender
Q&A for people who use Blender to create 3D graphics, animations, or games
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
French Language
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language
German Language
Q&A for speakers of German wanting to discuss the finer points of the language and translation
Travel
Q&A for road warriors and seasoned travelers
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
Open Source
Q&A for people organizing, marketing or licensing open source development projects
Software Recommendations
Q&A for people seeking specific software recommendations
Game Development
Q&A for professional and independent game developers
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Space Exploration
Q&A for spacecraft operators, scientists, engineers, and enthusiasts
Computer Graphics
Q&A for computer graphics researchers and programmers
Graphic Design
Q&A for Graphic Design professionals, students, and enthusiasts
Lifehacks
Q&A for people looking to bypass life's everyday problems with simple tricks
Expatriates
Q&A for people living abroad on a long-term basis
Ebooks
Q&A for ebook publishers and readers
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
Sports
Q&A for participants in team and individual sport activities
Movies & TV
Q&A for movie and TV enthusiasts
Music Fans
Q&A for music historians, critics, and fans
Medical Sciences
Q&A for professionals in medical and allied health fields, students of those professions, related academics, and others with a sound understanding of medicine and healthcare-related sciences
Open Data
Q&A for developers and researchers interested in open data
Area 51
Q&A for proposing new sites in the Stack Exchange network