Have you checked out the Blogger picture player? It has been around since September but I just ran across it:
Blogger Play will show you a never-ending stream of images that were just uploaded to public Blogger blogs. You can click the image to be taken directly to the blog post it was uploaded to, or click “show info” to see an overlay with the post title, a snippet of the body, and some profile information about the blogger who uploaded it.
Give it a try! Beware, though, some NSFW photos will scroll by:
I found it pretty absorbing.
How long did you get stuck there the first time?