Between word of mouth and social media, the average customer will influence a whopping 42 other people for every positive experience he or she has with your company. That's according to one estimate from Ninja Metrics, creator of a social analytics platform. As a result of that huge social reach, your biggest fans' influence can contribute to as much as 20 to 40 percent of your total revenue.

For more insight on who these very valuable people are and how you can nurture their influence, take a look at the infographic below from Ninja Metrics.  

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