I spend a lot of time on the internet, and occasionally find a site that's worth coming back to. Here are a few of those.

The astronomy picture of the day has some excellent space photos.
Partially Clips is a web comic with simple graphics and great humor.
If you like making fun of republicans (and who doesn't), the check out the White House.
If you like making fun of religious zealots, check out the Landover Baptist Church.
Post Secret is a project where people write their secrets on postcards and send them in.
World of Warcraft is the most awesomest on line game ever. I play mostly on the Duskwood server, but I also have characters on Killrog, Khaz Goroth, and Dark Iron. If you play there, drop me a line and we go killin' together.