English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
English Language Learners
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Mathematics
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Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Ask Different
Q&A for power users of Apple hardware and software
Photography
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Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
User Experience
Q&A for user experience researchers and experts
Web Applications
Q&A for power users of web applications
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Game Development
Q&A for professional and independent game developers
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Stack Overflow
Q&A for professional and enthusiast programmers
Physics
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Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Academia
Q&A for academics and those enrolled in higher education
Chemistry
Q&A for scientists, academics, teachers and students
Spanish Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Spanish language
Writers
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
Personal Finance & Money
Q&A for people who want to be financially literate
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Computer Science
Q&A for students, researchers and practitioners of computer science
The Workplace
Q&A for members of the workforce navigating the professional setting
