John Hennessy; Evan Williams

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Friday 02/27/2009

John Hennessy, president of Stanford University, examines the way the economic downturn has affected universities and what's being done to combat it. Co-founder and C.E.O. of Twitter Evan Williams reveals the draw of his three-year-old microblogging social media platform and the differences between Twitter and other networks.

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Evan Williams John Hennessy
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