Remember when your mother used to warn you, “Don’t put that money in your mouth — you don’t know where it’s been!” Well, now you do, thanks to Where’s George?, a site where you can track the travels of paper money. Prefer to track Canadian currency? Use Where’s Willy?.

Photo of Bob Ambrogi Bob Ambrogi

Bob is a lawyer, veteran legal journalist, and award-winning blogger and podcaster. In 2011, he was named to the inaugural Fastcase 50, honoring “the law’s smartest, most courageous innovators, techies, visionaries and leaders.” Earlier in his career, he was editor-in-chief of several legal publications, including The National Law Journal, and editorial director of ALM’s Litigation Services Division.