Lol I haven't gone there in ages, I've got enough random crap stashed on my computer to provide a good laugh that isn't sabotaged with gay porn amongst other things.

420chan is good because it's not incredibly fast that you lose your thread in half a minute if it isn't bumped. I've made threads there that've lasted for months, probably the best being this one: http://disc.420chan.org/dr/res/3786.shtml

Another chan that focuses more on the entertainment side of dreaming is http://uboachan.net/ dedicated to the game Yume Nikki, and full of mainstream dream shit.