Stack Overflow
Q&A for professional and enthusiast programmers
Super User
Q&A for computer enthusiasts and power users
Stack Overflow на русском
Вопросы и ответы для программистов
Stack Overflow en español
Preguntas y respuestas para programadores y profesionales de la informática
Ask Ubuntu
Q&A for Ubuntu users and developers
Arts & Crafts
Q&A for artists and crafters
Code Review
Q&A for peer programmer code reviews
Stack Overflow em Português
Perguntas e respostas para programadores profissionais e entusiastas
Server Fault
Q&A for system and network administrators
Web Applications
Q&A for power users of web applications
Vi and Vim
Q&A for people using the vi and Vim families of text editors
Emacs
Q&A for those using, extending or developing Emacs
Blender
Q&A for people who use Blender to create 3D graphics, animations, or games
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Philosophy
Q&A for those interested in the study of the fundamental nature of knowledge, reality, and existence
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites