Howard Rheingold is on the hunt again. With his last book, Smart Mobs: The Next Social Revolution, in 2001, the longtime observer of technology trends made a persuasive case that pervasive mobile communications, combined with always-on Internet connections, will produce new kinds of ad-hoc social groups. Now, he's starting to take the leap beyond smart mobs, trying to weave some threads out of such seemingly disparate developments as Web logs, open-source software development, and Google.
