Q&A for professional and enthusiast programmers
Q&A for cartographers, geographers and GIS professionals
Q&A for computer enthusiasts and power users
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for system and network administrators
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for people interested in improving and participating in the patent system