: tineye beta

"TinEye is a reverse image serch engine. You can submit an image to TinEye to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions. TinEye is the first image search engine on the web to use image identification technology rather than keywords, metadata or watermarks."

This is new to me. Pretty cool idea and it works! I did a reverse search on this image uploaded from a local file, and it found it on the site JPG where it was published. I know sometimes we need to backtrack a stock photo and this could help. On the other hand, if you are using someone's photo illegally without the rights - watch out. The original creator is gonna find you. Honestly, they probably should.