Physics
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Mathematics
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English Language Learners
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Economics
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Meta Stack Exchange
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Stack Overflow
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Electrical Engineering
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Psychology & Neuroscience
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Philosophy
Q&A for those interested in the study of the fundamental nature of knowledge, reality, and existence
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
The Workplace
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Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system