http://forums.metacritic.com

There are just an endless amount of forums when you really start searching for them. As I weeded through them, another one that really stuck out to me was http://forums.metacritic.com. This was good because, not only are the discussion forums about rock and music in general, but there is also a search engine to allow you to find the topic that you want to talk about. I found this to be most helpful in my search for topics about bands that I enjoy. Click on the music tab and there you can find even more specific information on what you are looking for. Here, I have been able to research the history of some of the rock bands I enjoy.