The Kahn Academy has expanded to 2,500 math tutorials that have been viewed 50 million times by 2 million students in 1,000 classrooms. This stunning success has prompted the governors of Florida and West Virginia to form the Digital Learning Council, and Rupert Murdoch, who owns much of the world’s media, is planning to get into online education “in a big way.” The Washington Post’s Kaplan University and scores of other institutions are entering the field. Business reporter Steve Pearlstein thinks “The long awaited revolution in education is about to begin.”