Lately I've focussed on developing rich, fast, responsive web apps, using client-side frameworks (such as Knockout and jQuery Validation) and have been experimenting with NodeJS.
You'll notice I often ask and answer my own questions. To my surprise, many of those questions actually get visited and up-voted, proving that a lot of the stuff we think is unique to our particular project can actually be very useful to other people.
So go StackOverflow!
Q&A for professional and enthusiast programmers
Q&A for professional programmers interested in conceptual questions about software development
Q&A for project managers
Q&A for computer enthusiasts and power users
Q&A for system and network administrators
Q&A for user experience researchers and experts
Q&A for SharePoint enthusiasts
Q&A for authors, editors, reviewers, professional writers, and aspiring writers
Q&A for those interested in logical reasoning
Q&A for Ubuntu users and developers
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for linguists, etymologists, and serious English language enthusiasts
Q&A for database professionals who wish to improve their database skills and learn from others in the community
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 WordPress developers and administrators
Q&A for apps, scripts, and development with the Stack Exchange API
Q&A for power users of Apple hardware and software
Stack Exchange Network staging zone, where users come together to build new Q&A sites