"We are leading in turbulent times" has to be the understatement of the century. Critical trends are turning the world of work on its head. When people work collectively there is no rule book. Nothing fits together in neat models. No one knows who is in charge. For leaders the time has come to question every move.-Who makes the decisions in a virtual world?-Hopw does an online community effect change?-What does social networking mean for the way we...