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
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Aviation
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Server Fault
Q&A for system and network administrators
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
WordPress Development
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Motor Vehicle Maintenance & Repair
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
The Workplace
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Game Development
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Seasoned Advice
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Network Engineering
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Chinese Language
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Chinese language
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Christianity
Q&A for committed Christians, experts in Christianity and those interested in learning more
Code Review
Q&A for peer programmer code reviews
Web Applications
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Physics
Q&A for active researchers, academics and students of physics
Database Administrators
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Pets
Q&A for pet owners, caretakers, breeders, veterinarians, and trainers
Information Security
Q&A for information security professionals
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Blender
Q&A for people who use Blender to create 3D graphics, animations, or games