<a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=David+Karp&family=editorial&specificpeople=6603515 ng-click='$event.stopPropagation()'>David Karp</a>, founder of the micro-blogging site Tumblr, opens the NASCAQ Exchange on July 11, 2013 in New York City. Tumblr was bought by Yahoo! for $1 billion in May; Karp is estimated to be worth $200 million.
{"Image ImageDescription": "NEW YORK, NY - JULY 11:  David Karp, founder of the micro-blogging site Tumblr, opens the NASCAQ Exchange on July 11, 2013 in New York City. Tumblr was bought by Yahoo! for $1 billion in May; Karp is estimated to be worth $200 million.  (Photo by Andrew Burton/Getty Images)", "Image Copyright": "2013 Getty Images"}