Some advertising for new sites and Area51 proposals:
French Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Computer Science
Q&A for students, researchers and practitioners of computer science
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Stack Overflow
Q&A for professional and enthusiast programmers
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Mathematics
Q&A for people studying math at any level and professionals in related fields
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Photography
Q&A for professional, enthusiast and amateur photographers
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
German Language & Usage
Q&A for speakers of German wanting to discuss the finer points of the language and translation
The Great Outdoors
Q&A for people who love outdoor activities, excursions, and outdoorsmanship
