Flame War Forums
A site dedicated to the personal attack in all it's art forums on the internet.
http://www.flamewarforums.com

FTW Forum
Ftw forum is a community dedicated to several things. Warez, flaming, hacking, programming and general chit chat.
http://www.ftw.net.au

How Shit Really Works
Its a site meant to mock How Stuff Works, with funny made up explanations of everything
http://howshitreallyworks.com

Its My Everything
Looking for some fun forum games, contests? Well look here, at Its My everything
http://itsmyeverything.co.cc

Shuwaa
Are you looking for an easy way to earn a bit free of cash, and are you looking to have fun while doing so? Then you've come to the right place!
http://www.shuwaa.com/shuwaaforum

The LOL
Find great jokes to make you LOL! Join out friendly jokes community for free!
http://the-lol.com