Blackboard
Blackboard can be used to manage both "traditional" and distance
learning courses. It offers many features for instructors; from their
documentation this includes
Course content management tools
Course communication and collaboration tools
Assessment tools
Academic Web resources
Course management tools
Each of these items covers quite a variety of information. They also offer
additional tools for campus wide systems.
As of early 2001, they claim usage at more than 6,500 institutions.
http://www.blackboard.com/