Tribes are groups of people aligned around an idea, connected to a leader and to each other. Tribes make our world work, and always have. The new opportunity is that it's easier than ever to find, organize, and lead a tribe. The Web has enabled an explosion of all kinds of tribes - and created shortage of people to lead them. This is the growth industry of our time. Tribes will help you understand exactly what's at stake, and why YOU can and should lead a tribe of your own.

Stop marketing at people! Turn your ideas into epidemics - ideaviruses - by helping your customers do the marketing for you. So says Info Age marketing guru Seth Godin.