If you pick a main forum such as http://talk.qa.collegeconfidential.com/college-search-selection/ then the top third of the page displays the sub-forums which is a good idea so users can see forums that may be more applicable.
However once you go to the 2nd or subsequent page on “College Search & Selection” it should be clear this is the forum you want to select, yet the top third of each page still displays the sub-forums.
My suggestion is that once you are off the 1st page of a major forum the sub-forums should not be displayed.