Slowing converting from Stack Overflow lurker into a contributing member.
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Game Development
Q&A for professional and independent game developers
Ask Different
Q&A for power users of Apple hardware and software
Audio-Video Production
Q&A for engineers, producers, editors, and enthusiasts spanning the fields of audio, video, and media creation
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Server Fault
Q&A for professional system and network administrators
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Web Applications
Q&A for power users of web applications
WordPress Answers
Q&A for WordPress developers and administrators
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs