I'm a software developer by profession, and have been pretty active at Stack Overflow and some other SE sites.

I'm an avid user of many popular webapps, like Facebook, Twitter, LinkedIn, Yammer, and Gmail (and other Google stuff like Docs, Calendar, Notebook, Picasa and even Buzz!), so I guess I'm able to answer some questions—and need to ask my own—about them too.

If you're into exercise or sports, by the way, you should totally check out HeiaHeia, a social training log from a Finnish startup.