Yesterday I got an email telling me I could start playing around with Thoof, the project Jonathan has been working on the last couple of months. It already got a couple of reviews, of which the one on VentureBeat was imho the most interesting, as it talks about the technology aspects rather then just the business side.
If I understand it correctly, Thoof tries to do news ranking according to your preferences, not someone else’s. It tries to learn what you like by tracking how you use Thoof, recording things like where you came from, what articles you click on and what you search for. This by itself is interesting enough to give it a try and see how it works. But on top of that, Thoof is build using Wicket, which is of course an extra reason to check it out! :)