Finding a Haystack's Most Influential Needles

摘要

Marketers have long mined data from social networks for "influencers," people whose favorable tweets and posts can boost product sales. The most successful tool available has been Klout, which launched in 2008 with investments from Kleiner Perkins Cauf ield & Byers and other venture capital firms, and whose clients include Walt Disney, Procter & Gamble, and Audi.