More guided browsing alternatives

I mentioned the other day that I had stumbled upon something...a friend recommended a site called Stumbleupon as a ready supply for blog content. Some of you might already be familiar with this (and others might shy away because (a) theres going to be more password nonsense* and (b) there is a very real possibility that the internet is going to eat your free-time/allotted leisure time/life and leave no room for anything else.) Having said that it is kind of fun - basically you sign up (which is quick and relatively painless) and pick your interests and then start stumbling across a selection of the web - giving the thumbs up to sites you like.  It's like Delicious in the sense that other people (either friends through linking up with your Facebook/google contacts etc.) or just general stumblers are 'handpicking' good sites. There is still human some filtering required here but I've already come across some really interesting things like Bookmooch.
Pursue if you dare!

 *steam out of ears