Web site that searches for photo sources

Someone once posted a web site here, and what said web site did was let you upload a photo and then it would seek out the source(s) of the photo. I once used it to find a non-photoshopped original photo of something.

Does anyone have any idea what I’m talking about and know the web site to which I’m referring? Thanks.

I think this is what you are referring to…
And here is one of the threads where it was discussed…

Have to say, TinEye is about the most interesting thing to come along in a very long time. Thanks for mentioning it again; I didn’t catch the first discussion. I’ve installed the plugin for Fx as soon as I watched the vid on what it can do. Amazing!

That is just awesome. I had no idea this existed, thanks!