new music

Where do you find new music?
New not as in recently released, but new as in never heard before by you.

Odds are pretty high that you heard it in a friend's car or on their iPod, at a party or a YouTube link someone sent you.

Music is inherently social.
We like to enjoy music in company. And endorse our enjoyment by singing along, dancing to it, or even just tapping our feet. We pick up music when see other people enjoying the music.

Music on the web (and on our computers) sorely needs that social aspect.

Update:
Actually, there is one thing: some chat applications have a feature that changes your status to the title of music playing currently on your computer.