Tim Westergren changed the way a lot of Americans listen to music, and developed a successful business model for a digital media business when he started the online music service, Pandora.  And the service has been growing this year, thanks, in part, to Apple.  Westergren tells Charlie Rose that Pandora´s user numbers skyrocketed with the introduction of Pandora apps for the iPhone and iPad.  Here´s an excerpt from that interview:

Westergren also discussed Pandora´s revenue model with Rose.  And it is interesting to consider whether there are lessons for other digital media companies (newspapers, video services) in how Pandora runs its two-tiered subscription service.  Watch the full interview here.