Erik Hersman -- 利用手機短訊報導危機

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Erik Hersman -- 利用手機短訊報導危機
At TEDU 2009, Erik Hersman presents the remarkable story of Ushahidi, a GoogleMap mashup that allowed Kenyans to report and track violence via cell phone texts following the 2008 elections, and has evolved to continue saving lives in other countries.