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  • Tavis Smiley

Tavis Smiley | Twitter Co-Founder Biz Stone | PBS

Duration: 22:28 (Full Program)
Program: Tavis Smiley #2263

Biz Stone, co-founder and creative director for the uberpopular microblogging site Twitter, discusses the monetary and social value of the site, which turns five this week, boasts 200 million accounts and employs 400 people.

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Post Date: March 25, 2011