Summer sale: Save 58%

D.T. Mongan

(Reuters/Carlo Allegri/Beck Diefenbach/AP/Matt Sayles/<a href='http://www.shutterstock.com/gallery-518599p1.html'>AshDesign</a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>/Salon)

Our massive new monopolies: Amazon, Google and Facebook have the power to move entire economies

Anna Bernasek, D.T. Mongan