Looks like the Americans For Dean group are going to do some great stuff in extending Drupal. Note that their design will easily allow a teacher to maintain a personal Drupal site and send posts to a class site. This is very useful since class sites are, in my mind, temporary spaces. Maintaining multiple class sites on a server is extra work. With this model, the teacher can build syllabus, course materials, etc. on their own site, and thus keep them permanently, even after the class site is taken down.

Nice!

7/17 Note: Their site seems to be down at the moment. Perhaps they are installing and configuring Drupal.