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When Facebook teamed up with researchers from two US universities to conduct a psychological experiment on nearly 700,000 unknowing users, it was bound to attract attention.

Perhaps, then, it is no surprise that the resulting paper, “Experimental Evidence Of Massive-Scale Emotional Contagion Through Social Networks”, published in the journal Proceedings of the National Academy of Sciences of the United States of America, has been declared the most popular online paper of the year.

This is according to Altmetric LLP, a London start-up that tracks and analyses the online activity around scholarly literature (the term “altmetrics” describes the practice of rating papers using “alternative metrics”, such as mentions on social media networking sites, rather than, for example, citations in other journals).

Other articles making the top 10 include an investigation into whether James Bond’s drinks were shaken because of alcohol-induced tremor, and the revelation that dogs are sensitive to small variations of the Earth’s magnetic field.

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“We continue to see a significant increase in the volume of research being shared and discussed online, and in the audiences engaging in those conversations,” said Euan Adie, founder of Altmetric.

“It’s no surprise to see that the most shared articles of the year heavily mirror the media agenda, but interesting to note that on occasion online communities are drawing attention to studies that have not received a significant amount of mainstream coverage.”

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The top 10 most popular academic papers of 2014

The full top 100 list, along with more information about the methodology, is available at .