So my friend was telling a story of how he was on chat roulette at some point in time and he was talking and these people did not know him but they said his name and signed off. Or nexted. Wutever. So I'm thinking they used a facial recognition search engine or something, but does something that accurate exist that it can take a screen shot of someone's face and find it on, say facebook? I know of tineye, but is there something else? Not that I'd be creeping on people, but that seems like it'd be fun to know their name and freak em out.