ILIAS open source:

"The web-based learning management system ILIAS is available as Open Source software under the GNU General Public License (GPL). Universities, educational institutions and every interested person may use the system free of charge and contribute to its further development.

ILIAS has initially been developed in the VIRTUS project of the Faculty of Economics, Business Administration and Social Sciences at the University of Cologne. As a client-server system ILIAS allows users to create, edit and publish course units in an integrated system with their normal web browsers."
- posted by Yik Sheng @ 2:24 PM