How did the Grateful Dead use its fanatical following to build a $100 millionbrand that still thrives today? How did upstart Boston Beer Company--makers of Sam Adams--prevail over rival Anheuser-Busch without an advertising budget? And how did lams create the premium pet food market and leap from $16 million to $600 million in sales in just fifteen years, while charging twice the price of competitor Ralston-Purina? The answer: radical marketing. In...