General Chats are good. Football specific forums are good. A lot of like minded individuals talking about their sports.
Me? More Cemetery, genealogy type stuff...death related websites....I am one weird person. Only thing is people don't join stuff like that I wonder why?
Oh need to be...its more of a morbid interest than anything else. Such as my user name which a lot of folks equate with the cartoon character that they saw on the Smurfs cartoon. Azrael is actually a personification of the Death Angel in Judeo Christian Islamic lore. You can read more here at this site: http://www.westgatenecromantic.com/ The lady that runs this is real nice.
I'm more into forum that discuss what I like. By that I mean they a sole purpose to the forum. Like say if its a Music forum then it would be a forum solely dedicated to the Beatles. AdminBB is the exception.