I mostly frequent the Theme Parks, Family and DVC forums watching for tips, changes and news. Love these threads to keep up to date on what is going on that will effect our trips.
I get a kick out of some of the topics on the Community Board.
Occasionally, I check out the cruise thread (since I have a future cruise booked) and the Podcast thread (love the podcasts and listen to all of them, regardless of topic).
I enjoy the dis boards and the way they are setup.