DrupalEd
From the official DrupalEd website:
This site can be used as an informal learning site where all users have comparable permissions, or as a more hierarchical learning environment with students, teachers, classes, and working groups.
The goal of this site is to create a flexible framework that allows for users to set up a social learning environment or a more traditional learning environment depending on the needs of the learners within the site. With this current framework, both approaches are supported.
The site comes pre-configured with some users, roles, a small amount of sample data, and some light Getting Started documentation.
http://www.funnymonkey.com/come-and-get-it
To learn more about this e-learning solution and all the other e-learning solutions that Wallanet offers go here: http://www.wallanet.com/open_source_packages/e_learning