5Team I think this is the BEST one of them all
http://www.stockstobuy.org/
Very informative message board, theres also a "Chat Room" section with people constantly discussing stock positions.
It doesn't have nearly the amount of drama nor clowns as others do.
I occasionally visit StockTwits, just too much BS on there to filter through.
Let me know what you think of it when you get a chance to take a look.