English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Personal Productivity
Q&A for people wanting to improve their personal productivity
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
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.
Sports
Q&A for participants in team and individual sport activities
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
The Workplace
Q&A for members of the workforce navigating the professional setting
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites