Robotics
Q&A for professional robotic engineers, hobbyists, researchers and students
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Electrical Engineering
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Mathematics
Q&A for people studying math at any level and professionals in related fields
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Game Development
Q&A for professional and independent game developers
Japanese Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Japanese language
Server Fault
Q&A for professional system and network administrators
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Physics
Q&A for active researchers, academics and students of physics
User Experience
Q&A for user experience researchers and experts
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Photography
Q&A for professional, enthusiast and amateur photographers
Computational Science
Q&A for scientists using computers to solve scientific problems
Writers
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
Computer Science
Q&A for students, researchers and practitioners of computer science
Parenting
Q&A for parents, grandparents, nannies and others with a parenting role