Internet entrepreneur Kevin Ryan, founder of several New York-based businesses—including GILT, Business Insider, and MongoDB—explains how he helped build DoubleClick into a multi-billion dollar global industry leader.

Ryan's October 28 talk was part of #CBSStartups Week. Read more: https://www8.gsb.columbia.edu/entrepreneurship/newsn/3246/join-us-for-cb...

#CBSStartups Week: Kevin Ryan

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