Stack Overflow
Q&A for professional and enthusiast programmers
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Q&A for enthusiasts and power users of the Android operating system
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Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
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Q&A for professional system and network administrators
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Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
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Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Ask Different
Q&A for power users of Apple hardware and software
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Q&A for apps, scripts, and development with the Stack Exchange API
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Q&A for cartographers, geographers and GIS professionals
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Q&A for researchers and developers who explore the principles of a system through analysis of its structure, function, and operation
German Language & Usage
Q&A for speakers of German wanting to discuss the finer points of the language and translation
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
