Significance

We show, via a massive (N = 689,003) experiment on Facebook, that emotional states can be transferred to others via emotional contagion, leading people to experience

https://www.pnas.org/content/111/24/8788

Facebook is facing criticism after it emerged it had conducted a psychology experiment on nearly 700,000 users without their knowledge.

https://www.bbc.com/news/technology-28051930

Facebook’s News Feed—the main list of status updates, messages, and photos you see when you open Facebook on your computer or phone—is not a perfect mirror of the world.

https://www.theatlantic.com/technology/archive/2014/06/everything-we-know-about-facebooks-secret-mood-manipulation-experiment/373648/

ehh you get the drift. I'm sure these links will disappear soon. 👍