Truemors is a rumour site by Guy Kawasaki. It's a sort of digg meets twitter type service where anyone can post content and it gets rated by the community true or not.
Pretty funny bullshit term generator.
The web 2.0 name generator from dot-o-mator is an interesting tool which generates an endless stream of Web 2.0 sounding names. Useful for name inspiration.
A team of designers applied a Web 2.0 look and feel to a selection of well known corporate logos.