TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Stack Overflow
Q&A for professional and enthusiast programmers
Cross Validated
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Super User
Q&A for computer enthusiasts and power users
Mathematics
Q&A for people studying math at any level and professionals in related fields
Web Applications
Q&A for power users of web applications
Photography
Q&A for professional, enthusiast and amateur photographers
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Ask Different
Q&A for power users of Apple hardware and software
User Experience
Q&A for user experience researchers and experts
Academia
Q&A for academics and those enrolled in higher education
Graphic Design
Q&A for Graphic Design professionals, students, and enthusiasts