Post links to English-language image boards here. There are about FIVE BILLION, but here's a couple of obvious ones:
http://www.2chan.net/ - Futaba Channel, the original.
http://www.nijiura.com/ - Nijiura, with the OS-tan board.
http://www.nijiura.net/ - Nijiura, adult version.
Russian teen Links (no legal) 18gb in 89 video files
http://url.ie/dsxh
Pass: zamzum
I can't see the very first 100 posts anymore. I get an XML reading error.
Here are some more links
http://i-bbs.sijex.net/hilegrq/
http://i-bbs.sijex.net/imageBoard.jsp?id=contortin
http://s6.artemisweb.jp/bbsboard/
http://www.virginchan.org - Virginchan: an imageboard for virgins
http://www.8chan.co - 8chan: A create-your-own imageboard site