Google seems to pull out another new trick: reverse image search. You can drop an image into the search bar, wait for a while, and get supposed relevant results. I have been playing with it for a while. Following two images, snapshots from news podcast. One is Ronald Reagan, the other is JFK. Both search returns good result:
The icon of VLC player leads to the site of VLC
And this blue figure actually leads todoctor manhattan!
Man, this is crazy. How does it work?