Stack Overflow
Q&A for professional and enthusiast programmers
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Server Fault
Q&A for professional system and network administrators
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
User Experience
Q&A for user experience researchers and experts
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Bicycles
Q&A for people who build and repair bicycles, people who train cycling, or commute on bicycles
Stack Apps
Q&A for apps, scripts, and development with the Stack Exchange API
Ask Patents
Q&A for people interested in improving and participating in the patent system
Graphic Design
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
