I'm pretty leery of BodyBuilding.com. For every knowledgeable person there, you have 100 morons who don't have the slightest clue what they're talking about. The site itself is great, but I find the forums pretty spotty.
My de-facto weight lifting mentor sent me over to IntenseMuscle.com and I find it to be a much more knowledgeable forum. They don't have any qualms about giving idiots the boot over there.