I'm primarily a webcomic artist - I do get paid a pittance per strip by one of the student newspapers to run them every day, so I suppose I'm technically a professional, but it is in no way my means of subsistence. Most of what I post here is what I do for fun, though I do occasionally try to keep some particularly good strips in my archives.
I like to experiment with a bunch of different art areas and types, though unfortunately most of it falls in the category of fan art. Sometimes I'll put up a little piece of experimental art using my own characters, though.