Links
www.dribbleglass.com
The king of all humor sites.  Features awesome original pictures, as well as jokes, facts and miscellaneous other good things.
www.napkin.org
Features thoughts so brilliant, they had to be scribbled on a bar napkin.
www.iowafarmer.com/
corncam/corn.html
Not really a humor site, but fun anyway.  Watch corn grow!
http://emotioneric.com/
This is the best.  Features pictures of a kid making faces.  Priceless.
The Big Red Button
The humor of this site lies in the comments sent in by websurfers like you.
www.prettystrange.com
Need more?  This is an index of unbelievably odd sites.  New site every day!  However, if you get impatient with dead links, this is not for you.  It's a good site, but I'd estimate that maybe a fifth of the links don't work.
Back to home
SFOIDF
Strange foreign objects in dog feces.  Features amazing stories sent in by ordinary people.  You'd be amazed at what dogs can get away with eating.
www.farts.com
Features sound clips of various farts, and a fart of the week.
Suck.
This is Wumph's personal favorite page.  Ok, so I was bored.  But honestly, it's pretty absurd and funny.