These are the websites that make the internet what is has become--an invaluable part of our lives.  These sites embody the spirit of the internet and the usefulness it has and will continue to provide our society.  "So what do you use the internet for?"   =)
Where The Hell Is Matt?
Urban Legend Reference
Redneck Neighbor Site
Insanity Test
The Last Page Of The Internet
Powers of Ten
Make Your Own Fireworks Display
Moving Squares Challenge
Hampster Dance
Movie Mistakes
Tour de Butt  (looks like the site is gone...what a shame)
The Oracle of Bacon (Seven Degree of Kevin Bacon)
Satellite Image of the Earth at Night (NASA)
"Best Of" Images from the Hubble Telescope
Watching The Changes (NYC)
Google Earth "Strangest Sights"