As a music lover I did not know just how much great free music exists until the netlabel scene rose up in the past years and started promoting music throughout their hemisphere. Nowadays I often find "professional high quality" music under free licenses but since it is not played on the radio or TV (thanks to music industry marketing deals), it does not spread to the major part target audience that relies on those channels for their new material.
Try do the same thing with a website with poor content, visitors will never come back.
Try do the same thing with an iPhone/Android app, user installs and uninstall within 20 minutes.
Try do the same with a paid web service, user will only pay the first month of the service.
An Amazing Product will engage the users and they will automatically spread the word.
I certainly will not give that advice to Tommy Mottola(or whoever is in charge of Sony Music now).
Read this, this is Dropbox(YC 07) CEO talking about Adwords.
http://venturebeat.com/2010/10/27/dropbox-drew-houston-adwor...