Favorite Photo Manipulating Websites

It's a little early in this blog's life to wander off topic (as I'm prone to do on Revverberation), but this is worth it. I've discovered two great photo sites this morning. Each worth some time. 

1) Worth1000: A site that features contests for PhotoShop junkies. Some hysterical images, including a collection of presidents in drag (which has been forwarded around a lot lately).

2) Rasterbator: Many applications allow you to convert your photos to tiled PDF images you can print on a B&W printer. But this one makes it very easy, and has some great stories around how people used Rasterbator creatively.