When Hiro first saw this place, ten years ago, the monorail hadn’t been written yet; he and his buddies had to write car and motorcycle software in order to get around. They would take their software out and race it on the black desert of the electronic night.
— Neal Stephenson, Snow Crash
Programming Puzzles & Code Golf
Q&A for programming puzzle enthusiasts and code golfers
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Ask Different
Q&A for power users of Apple hardware and software
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Photography
Q&A for professional, enthusiast and amateur photographers
Server Fault
Q&A for professional system and network administrators
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
Physics
Q&A for active researchers, academics and students of physics
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Mathematics
Q&A for people studying math at any level and professionals in related fields
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Game Development
Q&A for professional and independent game developers
User Experience
Q&A for user experience researchers and experts
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Ask Patents
Q&A for people interested in improving and participating in the patent system
Answers OnStartups
Q&A for entrepreneurs looking to start or run a new business