These are just three of the many examples of successful uses of the Internet by large corporations that are profiled by Joel Kurtzman in his new book “Radical E". What we mean by 'radical' is that these companies surprised us. They've embraced it with agility and speed; they've employed it throughout their organizations as the means for doing business. They have been every bit as innovative as the best of the start-ups, and they have the muscle and the clout and the financial wherewithal to make it work.