Personalized Radio
Via kluge.de come a link to to a very interesting radio concept website. LAST.FM is a way to make a personalized radio station that plays only your music. In return you can listen to radio stations that are near in taste with yours. You put together a playlist with your favorite songs (hey you can even block songs that will never appear to be even accidentely selected by you) then you hit play and it plays them. The website then figures out who else has a similar taste in music and offers to listen to their personized tracks. Interesting concept.