Summary: <p>Digital technology networks like Facebook, Twitter and Google are estimated to be worth billions of dollars. Yet these ventures employ vastly fewer people than the big companies of the past. Jaron Lanier is a computer scientist who helped create Silicon Valley start-ups that are now part of these companies. But he argues these digital networks enrich relatively few people and do not enlarge the overall economy. In his new book, "Who Owns the Future?," Lanier lays out his vision for how the middle class could benefit more from the new information economy.</p>
