Figured I'd share some of my favorite time waster sites and hope that others would contribute theirs...
http://www.tfproject.org - Duh
http://www.fark.com/ - The classic
http://www.funpic.hu/en.index.php - Huge collection of funny and odd pictures (some NSFW)
http://digg.com/ - More users posted news
http://www.engadget.com/ - To keep the inner geek satisfied
http://gizmodo.com/ - Gadgets, gadgets, and more gadgets!
http://www.zanorg.com/prodperso/jeux.../index_eng.htm - Games that would irratate even the most patient
http://www.digyourowngrave.com/ - More games, funny news, pictures, etc...
http://www.photocamel.com/forum/ - A great photography forum
http://www.maxgames.com/ - A TON of flash games
More to add?