Dude, I laughed for like three minutes straight at the comments on the electrocution test…you rule.
Crap. The bunny link won’t load. I’m using Opera 7.
Etiquette Hell. Stories about terrible behavior at weddings. Hours and hours of entertainment.
This makes me laugh when I have a bad day:
Go-Shot
Odd Todd features some hilarious flash cartoons chronicling the adventures of an unemployed loser.
Viceland’s Video Outtakes. Ever see Orson Welles drunker than a Canadian well-digger? Here’s your chance.
Netjerk Lounge. Membership is by invitation only but anyone can read the posts and they are hilarious. One of the members is comedian Patton Oswalt. Most of these posters would be thrown off the SDMB in about 2 seconds.
I’m suprised to see that this is still up – I thought he’d taken it down and replaced it with his mailing list, but good news that I was wrong.
The Japanese themselves (in my experience) don’t find that site offensive. Whenever I get into a discussion with Japanese people about Japanese-English, someone will inevitably mention this site to me. So enjoy without guilt. 
Portions of http://www.for-children.com/evolution01.html are entertaining.
I think most of the stuff on somethingawful.com is rather juvenile, but the Photoshop Phridays stuff usually kicks my butt.
I honestly thought I’d get to the last page and find a punchline to the effect “And these are the kind of limp, intellectually dishonest, misapprehensions that… etc.”, but they really mean it, don’t they?
Hehe. A pull-no-punches approach to stick cruelty… Very enjoyable, thanks!
I prefer the Joe Zombie series myself… pure Hollywood rip-mockery, and much more fun than most of their efforts
True Porn Clerk Stories by Ali Davis.
I should add that the above link is not a link to porn. It’s a hilarious web journal documenting the experiences of a girl who worked in a video store that also rented “adult” movies.
http://kor.dk/borge/inflate.php
Hope that works as a link. With it, you can make the most mundane of sites funny.
I just listened to Cleo1 from Celebrity Prank Calls - I laughed until I cried! **Thank you! **
http://media.ebaumsworld.com/index.php?e=cleo1.mp3
I second this. It is my personal opinion that SA is that source of ~90% of all the internets humor. Once you get to the forums, you will understand.
www.Bad-candy.com is a personal favorite of mine, the messageboard attached to the site is hilarious as well.