James Shewmaker points us to the always-worth-reading: Brand Autopsy.
The major reason why word-of-mouth hasn’t taken off is not because marketers lack the metrics to measure it. It’s because most products, services, and businesses simply aren’t worth talking about. Marketers should worry less about the metrics of “WOMUnits” and more about the message of the word-of-mouth activity. The more compelling and interesting the “WOMUnit,” the more people will talk about it.