Moodle

Preferred license: GNU General Public License (GPL)
Moodle is working to develop the very best tool for online learning. Our software is a Learning Management System written in PHP, designed to help teachers facilitate communities of learners in a variety of interesting ways. Moodle is widely used around the world by universities, schools, companies, and all manner of organizations and individuals who need to conduct education online. Many of our users take part in the community on moodle.org and contribute with ideas, debate, testing, education, documentation, bug fixing, feature writing and everything else that makes an open source project function.
Actual source code produced by the student participants in Google Summer of Code™ for Moodle can be found here.
 
Current Projects
by Laia Subirats Maté, mentored by David Jesús Horat Flotats
by Bautu Andrei, mentored by Penny Leach
by Grady Laksmono, mentored by Petr Škoda
by Daniel Servos, mentored by Greg Wilson
by Joseph Morwick, mentored by Mathieu Petit-Clair
by Luis Filipe Romão Rodrigues, mentored by Martin Dougiamas
by Askars Salimbajevs, mentored by Nicolas Connault
by Akshit Sharma, mentored by Shane Elliott