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http://www.fastcodesign.com/3033073/innovation-by-design/how-two-ex-googlers-turned-a-crappy-messaging-service-into-a-100m-app?partner=rss&utm_source=feedburner&utm_medium=feed&utm_campaign=feedbur...

started by Jabari Adisa on 18 Jul 14 no follow-up yet