TinEye is an image search engine built by Idée currently in beta. Give it an image and it will tell you where the image appears on the web. Try for yourself (here).
A Photo Editor (APE) is edited by Rob Haggart, the former Director of Photography for Men's Journal and Outside Magazine. Contributors include fine art photographer Jonathan Blaustein (@jblauphoto), Creative Director Heidi Volpe, photography consultant Suzanne Sease and Production Director Jess Dudley of Wonderful Machine.