ToonDoo.com is a very cool site (via Techcrunch) that lets people create and share their own cartoons in the familiar YouTube style. It comes packaged with some clipart, but you also can upload and crop your own elements. ToonDoo is also running contests, which, if sponsored, might become part of their revenue stream.
If you are into making comics but can't draw, Comic Life seems to be a great tool that creates stylized comic strips out of your pictures.
I'm also playing with Marvel's Comic Book Creator.
