COMPANY

Social bookmarking and discovery service, founded 2001 by Garrett Camp, Geoff Smith, Justin LaFrance and Eric Boyd. Sold to eBay in 2007, but bought back in 2009 by some of the founders plus additional investors.

Official Website:
http://www.stumbleupon.com/

Industry:
Media

Ticker:
(private)

Corporate headquarters:
San Francisco, CA

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