I got my first hit today on WheresGeorge.com! For those of you not familiar with the site, you enter the serial number of all your paper money into the sytem. If someone else enters the same bill at a later date, you will receive an email indicating several things, including when you first entered the bill, how much time had elapsed, and how far the bill had travelled in the intervening time.
I know, I know… nothing amazing, but it’s still pretty cool. So there!