My background is traditional website development and advertising (booo *shaaame*), education has morally made up for that though!
Stackoverflow is the nuts.
Q&A for professional and enthusiast programmers
Q&A for computer enthusiasts and power users
Q&A for linguists, etymologists, and serious English language enthusiasts
Q&A for professional system and network administrators
Q&A for pro webmasters
Q&A for active researchers, academics and students of physics
Q&A for power users of web applications
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for Ubuntu users and developers
Q&A for people studying math at any level and professionals in related fields
Q&A for apps, scripts, and development with the Stack Exchange API
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for passionate videogamers on all platforms
Q&A for professional and amateur chefs
Q&A for professional programmers interested in conceptual questions about software development
Q&A for professional graphic designers and non-designers trying to do their own graphic design
Q&A for dedicated home brewers and serious enthusiasts
Stack Exchange Network staging zone, where users come together to build new Q&A sites