If you like Last.fm and just wanna tell the world every little detail of your day on Twitter, you might want to check out Blip.FM.
Sign up to become your own DJ, then search out music by artist name or song titles. Make a selection, then Blip will connect you with others who like the same music. Log in and you get a running commentary on the music by others. Post your own and send a feed to Twitter.
In all the circular references to one’s self that you can find in “social networks“, this one works incredibly well at using personal taste to connect you with others.
I like it better than Pandora. Check my channel out, I’m DJCole