David O. Sacks is the Founder and CEO of Yammer, Inc. Sacks was previously the COO of PayPal until its acquisition by eBay. Subsequently, he founded Geni.com, a family tree building and networking website.
He also produced and financed the hit movie Thank You For Smoking. David recently sold Yammer to Microsoft for $1.2 billion.
David holds a B.A. in Economics from Stanford University and a J.D. from the University of Chicago Law School.
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