Via the blog of proximal development I came across 21 classes, which is getting parked here because I’ve been looking for something like this for a while, and it will no doubt be handy at some point. It looks like it provides a way for an instructor and student to manage individual blogs via a class blog portal.  I recently tried explaining to some IT people that something like this would be useful, but did a pretty bad job of it, so it’s nice there’s an easier way.