In this “Arming the Donkeys” podcast, I talk with Jonah Berger of the Wharton School of Business about how we share and spread ideas, both online and person-to-person. Berger is the author of “Contagious: How Things Catch On.” We discuss the power of word-of-mouth recommendations vs. advertising, and examine how social media like Facebook and Twitter help transmit information and shape our interests.

Here’s the link to iTunes U.

Dan