Stamped Founder Robby Stein On Launching Version 2.0 And Roping Celebrity Investors

Stamped has been a busy little startup. The company just launched version 2.0 of the app, letting people take action on the things their friends have suggested through a stamp of approval. This is thanks in large part to a massive funding round from various celebrities and companies including Justin Bieber, Ellen DeGeneres, and the New York Times Company.

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