"Photo Fun"

One of the funniest photo websites I've found is http://photofunia.com/. The site's technology is remarkable in that you can upload a personal image and have it inserted into one of their 70 pre-made images. Some of their pre-made images included billboards, newspapers, galleries, and so on. Mind you, not all of the pre-made images are appropriate and I would advise adverting your eyes where applicable. (It's just the conservative in me giving a warning.) :)

Details: The photos I uploaded were edited in my usual programs such as GIMP and Microsoft Office Picture Manager.