marcus brauchli is the editor of "the washington post," was the editor of the washington journal. you have their buy yoes owes. ken i have known for 30 years. he also has written ten books. the latest of which is "googled." but every one of these books has really dealt with communications and people who are changing the nature of communications. want to start with a little historical overview to get this thing started, which is it's been about 50 years since the advent of the digital age and its impact on content. for the first 25 years of that period in the digital age, the format of the content in dirgitl form was discussion. it was the early days of the internet with the bulletin board systems and then eventually online services with the well and leading up to consumable like aol in which people formed communities and were on chat rooms and bulletin boards and discussion groups and everything was shared socially in terms of information and discussion. in approximately 1995 with the advent of the mosaic browser and other things, there was a dramatic shift in the way the internet