I'm trying to do a school project documenting the largest Bulletin Boards on the internet. I'm comparing the rise of Website based bulletin boards to newsgroups. It seems that newsgroups are especially dominated by file traders these days. The same applies to IRC chat. Finally, it seems the real discussions are happening in boards like this:
www.slashdot.org (blog or forum or both)
So what are the other BIG FORUMS?
I'm definitely interested in non-webmaster type forums also: politics, society and culture, entertainment, news, sports