Social media followers: Beware the tweeting crowds | The Economist - 0 views
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IF YOU think money can't buy you friends, think again. In the online world, it’s possible to purchase a crowd of fans.
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To decide whether a follower is human, Mr Camisani Calzolari used various criteria, including the number of posts from a fan’s Twitter account and the use of correct punctuation in tweets. According to this research, by June 2011 nearly half of Twitter followers of computer maker Dell—about 700,000—were bots.
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On close inspection, a significant proportion of Mr Romney’s followers appeared to be fake profiles.
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