The website TinEye allows you to search for images, find out where they originated, how they are being used and if a modified version of the photo exists. It’s also a good way to check and make sure your own work hasn’t been altered or reused by another publication without credit.
You can start by uploading a photo or providing a url to the image. Either way, TinEye will crawl the Internet for duplicates.
According to its website, TinEye has already indexed 2, 180,913,080 images from the Web. It also has a Cool Search page that displays some of the interesting photos it has come across online.
Check out the site and let me know what you think. So far, I think it has the potential to be a great resource for journalists and publications, especially as we use more user-generated content.