TeX - LaTeX
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Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Academia
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Stack Overflow
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Information Security
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Language Learning
Q&A for students, teachers, polyglots, and anyone interested in the techniques of second-language acquisition
Mathematics
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English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Home Improvement
Q&A for contractors and serious DIYers
English Language Learners
Q&A for speakers of other languages learning English
Vi and Vim
Q&A for people using the vi and Vim families of text editors
Open Source
Q&A for people organizing, marketing or licensing open source development projects