I had no idea. Well, I guess I had never looked. I found Freelance-projects and elance this morning, after being told by friends. They're connection points for posting freelance software jobs and finding freelance programmers to do it. It's definately an international thing (quite a few are from asia) so the pricing can become very competitive.
I just missed a simple "PHP/MySQL export to Excel" job by a few minutes. The bidding was already closed. So if you have any online tech skills and figure you have some free time, pick a fun project and pick up some extra cash.