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On today’s edition of MarketFoolery, the daily podcast from The Motley Fool, we discuss the following topics:

  • Online music company Pandora (NYSE: P) is the latest to enjoy a splashy IPO. With competition from the likes of LastFM and Sirius XM (Nasdaq: SIRI) what's the biggest threat facing Pandora? 
  • Shares of J.C. Penney (NYSE: JCP) were up big yesterday on the announcement that the retailer has hired Ron Johnson to be the new CEO. Will Johnson, the architect of Apple's (Nasdaq: AAPL) retail stores and the "Genius Bar," be able to bring the same success to J.C. Penney?
  • What's the latest innovation from biotech United Theraputics (Nasdaq: UTHR)? Four words: comic book annual report. Can our analysts find the next great creative form of annual report?

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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.