My background is mainly in real-time embedded programming in C/C++, but I've also worked with Pascal, Fortran, dBase, SQL, a few proprietary languages, and many scripting languages. I'm comfortable in Windows, Linux, Unix, VxWorks, and a few proprietary RTOSes. I dabble in web technologies, but have done no professional development in them. I've got a keen interest in Google Apps, which I use to automate many facets of my work, so that's been my main focus on StackOverflow.
Q&A for professional and enthusiast programmers
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for computer enthusiasts and power users
Q&A for power users of web applications
Q&A for project managers