Well you've certainly picked what I consider to be the most level headed, respectable forum to be your first.
NSNO and GOT offer the occasional good read but there's a hell of a lot of Anti-Board/Kenwright sentiment on those sights, with a good dash of aggressive replies to anyone who has a differing opinion about any aspect of the game, club, players etc.
I normally look out for posts from LCAB and Shorty and largely ignore the rest, though the new supply of Honey Badger pics/quotes is amusing