Celebrities aren’t like you and me. They’re better. Or at least Facebook thinks they’re worth more money.
Convince experts and influencers to like something, and everyone will follow their lead. The question is how to identify who these special people are, and Facebook’s just patented one of the trickiest ways yet.
The idea is that Facebook could watch the rate at which a piece of content like a link is shared, then figure out whose posting led to a sudden increase in share rate in their network. Those people are the influencers, and the people that they discovered the content from are the experts …
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http://techcrunch.com/2015/02/16/facebook-influencer-marketing/