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Huge thanks to Landmark who convened Social Innovations Summit today. Nicholas Negroponte was worth the price of admission alone! #sis123:08 PM May 31stvia TweetDeck
socinnovationLaura Arrillaga-Andreessen: "Philanthropy now has the potential to shift it's culture to one that rewards only great impact" #SIS126:30 AM May 31stvia webRetweeted by StephenBalkam and 4 others