Facebook is facing potential investigations in Europe after it disclosed last week that it deliberately manipulated the emotional content of the news feeds by changing the posts displayed to nearly 700,000 users to see if emotions were contagious.
Report: Facebook researchers had few limitsUSA TODAY
A Bright Side to Facebook’s Experiments on Its UsersNew York Times
Facebook Experiments Had Few LimitsWall Street Journal
Firstpost -Irish Independent -Washington Post
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