If you have kids 6-15 years old, chances are you've heard of Captain Underpants or Super Diaper Baby. Best Selling Author Dav Pilkey's site is full of tons of fun stuff. You can play Booger Buster 2000 inspired by one of Dav Pilkey's Captain Underpants book: The Big Bad Battle of the Bionic Booger Boy, or you can send greeting cards that you can make your self with his "Pinginator 2000". In addition to lots of great games, there's also a lot of fun background material about his books and even some cool music and music videos. This is probably one of the better kids book author sites on the Internet!