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This article was published 16/8/2013 (1410 days ago), so information in it may no longer be current.
SAN FRANCISCO -- Positive opinions are more influential than negative ones, at least on the Internet. If an article is "liked" on a website such as Facebook, new readers are more likely to approve of it, according to a study published in the journal Science. While the positive reactions create a "herding" effect, negative views don't appear to affect people the same way. The comments that got a positive boost from the researchers subsequently took off in popularity, receiving a 25 per cent higher rating on average from other users.
-- Bloomberg News