http://www.wheresgeorge.com/
Sam: Where's George is a website that you go to and type in the code on your dollar, and then you click "submit" and see where your dollar has been.
C: You stamp a bill with a stamp and its got clear rubber pad stuck to a sticky thing, and the ink is red and it says "see where I've been, track where I go next www.wheresgeorge.com".
Sam: We found about it when Tory's dollar had it stamped on it. We typed it into wheres george.com and found out that we were the first to receive it. It was from Pacifica.
C: On Wheres George dot com, there was a story about this weird guy who really liked doing where's george, and he would stamp like crazy and he stamped almost three quarters of a million dollars.