I started programming for a living in 1987, and have mainly been working in C++ with Qt since 1999, with some OpenGL along the way.
Stack Overflow
Q&A for professional and enthusiast programmers
Ask Different
Q&A for power users of Apple hardware and software
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
Server Fault
Q&A for professional system and network administrators
Raspberry Pi
Q&A for users and developers of hardware and software for Raspberry Pi
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
User Experience
Q&A for user experience researchers and experts
Photography
Q&A for professional, enthusiast and amateur photographers
Open Data
Q&A for developers and researchers interested in open data
Blender
Q&A for people who use Blender to create 3D graphics, animations, or games
Software Quality Assurance & Testing
Q&A for software quality control experts, automation engineers, and software testers