Came across a new search engine called TinEye last week. It lets you either upload or paste a link to an image and it searches its index looking for the same image. For those that make money off of their images, or just don’t want copies on other sites, this is a good way to find where your stuff is shown.
Tried it with a few of my shots. Didn’t find anything though. Their stats list about 1.3 billion images indexed. Of course there are tons of images on the internet so that may not even scratch the surface. Or maybe the pictures I tested on weren’t good enough to copy.