Gym membership style model for lifelong learning/personal development. Membership fee, then able to go to any course. Details: http://explore.sunderland.ac.uk/
This is going to be big.
There is a preview at the wave home page:
http://wave.google.com/
(It's quite a long demo talk btw).
It is in alpha at the moment and they've unusually announced it now to get developers on board before beta release in the autumn (does anything web 2.0-y ever get beyond beta these days?) as they're releasing it open source.