Just saw a tip about creating "feed books" in Elgg - subscribing to a bunch of RSS feeds that will be used to populate a blog. It allows filtering by keywords, so you don't have to have your offsite cat blog post aggregated along with your Chem 350 research notes.
Combined with the cool community stuff in Elgg, I'm wondering how close this might get to EduGlu?
ps. I'm reading Cryptonomicon too much lately. The title of this post almost looks Outer Qwghlmian. Code talkers beware...