Berkeley is a brand. The University of Maryland is a brand. Courses can be searched or listed by subject or institution. There are also feature courses displayed along the left side of the page. If you pay to be a partner, your course will be found in many different nooks.
Revenue comes in a variety of ways.
Sometimes banner ads pay, though often they're traded. Hungry Minds has sponsorships, and the more money a sponsor pays the more prominent its brand becomes. When products are sold, Hungry Minds gets a piece. And of course, when a student signs up for a course through Hungry Minds, Skorman sometimes gets a cut of what that student pays the university. Hungry Minds is the primary advertiser on Yahoo's education pages and in return gains a prominent, direct link in Yahoo's education category.