http://truemors.com/
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.
http://www.dack.com/web/bullshit.html
Pretty funny bullshit term generator.
http://www.dotomator.com/web20.html
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.
http://www.nicora.net/yh/webtoodotoh/default.html
A team of designers applied a Web 2.0 look and feel to a selection of well known corporate logos.
https://www.kissinsights.com/
A cool little survey tool that uses a javascript slide out to ask questions of visitors. Free for a few surveys with ads, or $25 - $29 a month for no ads and more response tracking.