[link]

It's a rather fancy collaborative online drawing site. It's got a lot of cool stuff, like an infinite canvas, a wide variety of brush options, and the ability to run your own sessions. It's the first drawing site that I've seen that I like as much as Mr. Doob's Multiuser Sketchpad, which unfortunately hasn't been online for quite some time now.

The only downside of Paint With Me at the moment is that it doesn't have much of a user base, and it's kind of hard to do collaborative drawing when I'm the only person there. I plan on hanging out there fairly frequently, and if anyone else is interested in collaborative drawing, I would strongly suggest you check it out too.