If you haven't, go check out the Flickr Commons. "The key goals of The Commons on Flickr are to firstly show you hidden treasures in the world's public photography archives, and secondly to show how your input and knowledge can help make these collections even richer." And if you're not the tagging or commenting type, browsing works, too because every once in a while you come across gems like this one from the collection of the State Library of New South Wales. (Baldessari, anyone?)
Peggy Bacon in mid-air backflip, Bondi Beach, Sydney, 6/2/1937 / by Ted Hood posted by State Library of New South Wales collection at Flickr

This was George Oates's baby and I'm glad her legacy lives on at Flickr. She's now working at the Internet Archive, leading the Open Library project.
Posted by: Nima Badiey | Mar 09, 2010 at 09:56 AM
I <3 George.
Posted by: Michael Sippey | Mar 09, 2010 at 09:58 AM