Moodle is a really helpful "learning management system" that we use to host academic sites at Evergreen. It provides a private and secure online space for you to host discussions and share resources with your students. As of Summer 2010, Moodle sites are automatically created for every academic offering and students are automatically enrolled.
Please visit http://my.evergreen.edu/ to find your sites.
Moodle is an open-source, freely available system that was built by and for teachers to provide a solid foundation for course management. Moodle supports structured course-work with tools like assignments, quizzes, peer assessment, etc. Moodle is reasonably easy to use and has many powerful features designed to augment the classroom experience. For more information about Moodle, visit their webpage at http://www.moodle.org/.