Super User
Q&A for computer enthusiasts and power users
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Academia
Q&A for academics and those enrolled in higher education
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
Physics
Q&A for active researchers, academics and students of physics
Personal Finance & Money
Q&A for people who want to be financially literate
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Information Security
Q&A for information security professionals
The Great Outdoors
Q&A for people who love being outdoors enjoying nature and wilderness, and learning about the required skills and equipment
Buddhism
Q&A for people practicing or interested in Buddhist philosophy, teaching, and practice
English Language Learners
Q&A for speakers of other languages learning English
Mathematics
Q&A for people studying math at any level and professionals in related fields
Music: Practice & Theory
Q&A for musicians, students, and enthusiasts
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Freelancing
Q&A for self-employed and freelance workers
Operations Research
Q&A for operations research and analytics professionals, educators, and students
Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Vi and Vim
Q&A for people using the vi and Vim families of text editors
The Workplace
Q&A for members of the workforce navigating the professional setting
Puzzling
Q&A for those who create, solve, and study puzzles
Code Review
Q&A for peer programmer code reviews
Ask Different
Q&A for power users of Apple hardware and software
Ask Ubuntu
Q&A for Ubuntu users and developers
Writing
Q&A for the craft of professional writing, including fiction, non-fiction, technical, scholarly, and commercial writing
Chess
Q&A for serious players and enthusiasts of chess
Data Science
Q&A for Data science professionals, Machine Learning specialists, and those interested in learning more about the field
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Graphic Design
Q&A for Graphic Design professionals, students, and enthusiasts
Quantum Computing
Q&A for engineers, scientists, programmers, and computing professionals interested in quantum computing
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
Quantitative Finance
Q&A for finance professionals and academics
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings