That includes a quick way for consumers to buy a song they hear, potentially boosting download sales from iTunes, as well as a revenue share of new audio ads Apple is planning to add to the free service, according to sources.

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MS. PSAKI: Well, as I'm sure will come as no surprise, I don't think we're going to get into specifics about strategy or ads that we're planning to run.

WHITEHOUSE: The White House

Pandora is also planning on strong advertising dollars from political ads as it enters the 2012 election year.

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