I've been interested in Web 2.0 recently, so I've been searching for some navigation websites. Today, I came across this website, which has a very fresh layout. It seems that the page prevents copying. The website categorizes Web 2.0 sites into 25 types, such as Fuser, Grey-hat, Miker, Show-offer, Paparazzo, and Tester, etc. It's quite comprehensive! I'm going to follow this website.