My favorite places to waste time on the Internet

The Onion - Without question the best site on the Web. Especially if you are a 30ish male.

MPlayer - Free audio chat software. I frequent the "OnStage" area where musicians (and karaoke singers) can perform live.

Soda Constructor - Cool toy! A dynamic erector set for the Web.

Kids Games - This list of game sites has been thoroughly tested by my children. 

HTML Goodies - The best place to learn about Web page construction.

SiSSY FiGHT - The coolest game on the Internet. You play a middle-school girl battling on the playground for her self-esteem.