Regarding our recent story on the term “unfriend” being named the Oxford American Dictionary’s word of the year, we heard from a number of people who say they’ve never heard anyone say “unfriend,” but rather, they hear and use “defriend” instead — as in, “I defriended her on Facebook because she was always sending me stupid quizzes.” Ammon Shea from Oxford University Press was gracious enough to talk to us again to clear up this “unfriend” versus “defriend” issue.

Also today: Part two of our interview with David Michel-Davies regarding the most important Internet events of the decade.

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Facebook, Twitter and the tools that enable them sometimes get a bad rap. A recent example: a weekend article in the San Francisco Chronicle, which quotes mental health professionals who worry that addiction to our digital tools will lead to a breakdown of interpersonal relationships and a rise in attention deficit disorder.

A new study from the University of Minnesota does not address those issues but does suggest social networks are a good way to get young people engaged current events and civic affairs, and have much potential as teaching tools.

Guest: Christine Greenhow, University of Minnesota

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