Facebook ™, whose business model relies on targeted advertising, is coming under increased scrutiny over the worth of its advertising model which promotes the gathering of "likes" from users.
"We've not seen evidence of a significant problem," a spokesman told us. [See no evil] http://www.bbc.co.uk/news/technology-19093078
A number of advertisers have been challenging Facebook to prove that the clicks they are receiving on their ads are "real" ...
"We generate a substantial majority of our revenue from advertising," the company said in its filing.
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