This software is quite insatiable, in the sense that it only works if you use it quite heavily. If you don't, it seems to run out of recommendations, and you have to move over from the My Recommendations station to Neighbourhood Radio.
I'm now back on Recommendations and for the moment receiving quite a varied diet.
As I write, the program tells me there is not enough content to continue, so I've clicked back on to Neighbourhood Radio. Do the gods listen to Last.fm?
I'd still love to do the same thing for political thought.