"La porte la mieux fermée est celle que l'on peut laisser ouverte" (Lao-Tseu - Tao-Tö-King)
Stack Overflow
Q&A for professional and enthusiast programmers
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Mathematics
Q&A for people studying math at any level and professionals in related fields
Musical Practice & Performance
Q&A for musicians, students, and enthusiasts
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Server Fault
Q&A for professional system and network administrators
French Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the French language
