I assume with the 'popularity' bias (probably not the right phrase) in the modern internet this is pretty much the future of search. Someone comes up with something cool, posts a pix, and someone else puts it on Twit/Face/Tube/whatever and it gets reposted over and over and over and since the original is some worthless peon as far as the algorithm is concerned you'll never, ever find them.
I wonder if that's something that can be addressed by embedding the right metadata into images/videos? Most people don't bother even checking e.g. Exif data (let alone stripping or otherwise altering it) when reposting content they find online.
