(La)TeX is user-friendly. It's just that it choses its friends with care.
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Physics
Q&A for active researchers, academics and students of physics
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Game Development
Q&A for professional and independent game developers
Mathematics
Q&A for people studying math at any level and professionals in related fields
User Experience
Q&A for user experience researchers and experts
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Christianity
Q&A for committed Christians, experts in Christianity and those interested in learning more
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Photography
Q&A for professional, enthusiast and amateur photographers
LEGO® Answers
Q&A for LEGO® and building block enthusiasts
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
French Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language
Biblical Hermeneutics
Q&A for professors, theologians, and those interested in exegetical analysis of biblical texts
Musical Practice & Performance
Q&A for musicians, students, and enthusiasts
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Writers
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
German Language & Usage
Q&A for speakers of German wanting to discuss the finer points of the language and translation
Audio-Video Production
Q&A for engineers, producers, editors, and enthusiasts spanning the fields of audio, video, and media creation
Parenting
Q&A for parents, grandparents, nannies and others with a parenting role
