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Kramer A. D. I., Guillory J. E., Hancock J. T. Experimental Evidence of Massive-Scale Emotional Contagion Through Social Networks // Proceedings of the National Academy of Sciences of the United States of America. 2014. Vol. 111. № 24. P. 8788–90. Эта история подробно освещена здесь: Everything We Know About Facebook’s Secret Mood Manipulation Experiment // The Atlantic. 2014. June 28. http:// www.theatlantic.com/technology/archive/2014/06/everything-we-know-about-facebooks-secret-mood-manipulation-experiment/373648.
