Stack Overflow
Q&A for professional and enthusiast programmers
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Ask Different
Q&A for power users of Apple hardware and software
Server Fault
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Game Development
Q&A for professional and independent game developers
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Q&A for science fiction and fantasy enthusiasts
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Q&A for apps, scripts, and development with the Stack Exchange API
Physics
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Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
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Q&A for enthusiasts and power users of the Android operating system
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Mathematics
Q&A for people studying math at any level and professionals in related fields
Programmers
Q&A for professional programmers interested in conceptual questions about software development
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Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
LEGO® Answers
Q&A for LEGO® and building block enthusiasts
Ask Patents
Q&A for people interested in improving and participating in the patent system
The Workplace
Q&A for members of the workforce navigating the professional setting
