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.
I'm looking for Japanese imageboards which contains porn (japanase or foreign). Any advice?