By Richard Vedder @ Three Things Colleges Don't Want Us to Know Universities are in the knowledge business, and the creation and dissemination of it is at the very core of what colleges do. Yet some forms of knowledge about higher education itself are either unknown, or hidden from the public. Why? Release of the information would prove embarrassing and possibly even costly to the school. 1. What Are the Teaching Loads? 2. How Do Pell Students Do? 3. How Much Do Students Actually Learn?