On the opening morning of the Web 2.0 Expo, I met Marshall Kirkpatrick for the first time in the press room, on the third floor of the Moscone Center. He was a big-boned guy, a couple of inches taller than me, with brown hair and well-trimmed beard. He looked young, an impression further emphasized by the olive-green-and-white sweatshirt he wore over blue jeans and sneakers. As we shook hands, I noticed that his blue eyes looked nervous behind his small, red-rimmed rectangular glasses. But it...
