Since every so often somebody posts something that's been circulating the net for years, I figured I'd post some too. Feel free to add your own internet relics.
Mullets Galore:
http://www.mulletsgalore.com/
The Official Ninja Webpage:
http://www.realultimatepower.net/
I was going to add a link to Hamster Dance, but that webside has been bastardized.
Jesus Dress Up still stands though!
http://www.jesusdressup.com/