This is interesting. Have you ever been on Flickr? It's one of the largest photo sharing sites on th enet. I have always been a HUGE fan - just because of the number of talented people there posting pics.
The link below goes to a series of pics tagged with PowerPoint.... kinda boring, in my opinion.
Here's something WAY cooler: a guy in Kentucky - my home state - a BRILLIANT photographer - just please take a few moments to view his work. He's so incredible.