Jason Calacanis | Mahalo

image credit: David Sifry/FlickrJason Calacanis was born on November 28, 1970 in Bay Ridge, Brooklyn, New York. Calacanis founded the web directory Mahalo in May 2007. He is also the co-founder of and is the host of This Week In Startups. Calcanis founded Open Angel Forum in 2009 and is as an angle investor he has invested in Gowalla, Blippy, gdgt, Thumbtack, and Backupify.

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