TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Stack Overflow
Q&A for professional and enthusiast programmers
Emacs
Q&A for those using, extending or developing Emacs
Super User
Q&A for computer enthusiasts and power users
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
Server Fault
Q&A for system and network administrators
Vi and Vim
Q&A for people using the vi and Vim families of text editors
Cross Validated
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Mathematics
Q&A for people studying math at any level and professionals in related fields
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Ask Different
Q&A for power users of Apple hardware and software
Software Recommendations
Q&A for people seeking specific software recommendations
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Web Applications
Q&A for power users of web applications
Artificial Intelligence
Q&A for people interested in conceptual questions about life and challenges in a world where "cognitive" functions can be mimicked in purely digital environment
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle