TinEye: Reverse Image Search

Have you ever encountered this situation: you see a picture online that seems familiar, but you just can't remember where you saw it, and you want to know more about the picture (for example, what's the name of the girl in the picture?). You have to ask on various forums or try using traditional image search engines, racking your brain for some keywords, and the results are often irrelevant. So, can you use a picture to directly search for pictures?

TinEye has changed all that. It can very accurately match the target image you're looking for across the entire internet, and its search speed is quite fast.