Check out Sakia & LAMS

Sakai purports to be "the world’s leading open source Collaboration and Learning Environment." I've tried a time or two to install it and make it do something useful, but have failed. I'm not sure why. I'd be interested in someone I know checking it out.

It's recently been integrated with LAMS, whatever that is. It ostensibly "creates digital lesson plans that can be run online with students, as well as shared among teachers." That sounds good too.