There's a website out there outing providers who model, by linking the two identities and providing pictures of both. He's using Model Mayhem and other such sources. For those who do model as a side profession and hobby this sucks.
I don't want to post the link, as a friend of mine is already on there, and there's no use giving this further exposure. At the moment he seems to be focusing on women.
Think twice about posting a profile, and don't use pictures from the same sets - seems obvious but that's happening. Image search sites are getting pretty good, blur the face as well as you can, and test what your picture looks like in smaller sizes. Shrinking the picture can clear up some of the blurring and bring the image focus. For face recognition the top of the brow line to the bottom of the nose is key. Remove every freckle and distinguishing mark on your body (not everyone takes the time).
I for one also have my photographers sign a non-disclosure agreement. Just in case.
If any lady would like to know about the site please PM or Email.