I just finished reading Tribes, by Seth Godin. (I was one of those people who ordered it from Amazon on the very first day it was released.)
Every business owner should read this book. Period.
I've been using the term 'fans' or followers' but Seth's 'tribe' captures the idea exactly. This is how little companies can accomplish things that large companies with millions to spend on advertising could never achieve: Build a tribe.
Build a strong connection to your customers - a connection so strong that they tell your story for you. Seth takes it further so I recommend you get this book and read it. In fact, I feel so strongly about this book that I am going to give one away at my next seminar.