Thank goodness the confining days of the 20th century are behind us and freedom of expression and choice will forever reign, right? Don't be so sure, says Tim Wu, a law professor at Columbia University. In his new book, The Master Switch: The Rise and Fall of Information Empires, Wu argues that our Internet-driven, increasingly wireless information bounty could be on the verge of falling into the stifling control of a handful of powerful companies—just as TV, film, radio, and telephones did in their time. In Wu's view, such companies as AT&T, Comcast, and Apple will try to increase their power as gatekeepers of information, subverting the promise of the Internet as a revolutionarily open distribution medium. Google was founded on an alternative premise, one rooted in the ideals of the Internet, but Wu fears that Google might also be drawn to the dark side.