I was just over at all the sites mentioned above.  The first one has some of the Poser and Bryce images that look familiar.  May be some from here, but I'm not sure.  What is funny, is this person was so bold as to include photos from National Geographic that they put up for the photo of the day and some that are part of the Adobe Photo for purchase.  That just blows me away with the chutzpah of this guy.

On the other two sites, something must have been said, because while I was there, images were disappearing very fast and leaving little red x's all over the place.
Bunny