Mr Deng's IT News Collection: The outrage sparked by a Facebook experiment on almost 700,000 users' emotions continues to burn, causing the research team to mount a public defence. For a week in January 2012, researchers tweaked users' news feeds to expose them to more positive or negative posts. They found a corresponding impact on what the affected users shared. In the subsequent paper they declared this proof of online emotional contagion. The publication of the report has prompted thousands of protest posts on social media, as well as concerns from leading academics and psychologists who have raised concerns about the ethics involved.

02 July, 2014

The outrage sparked by a Facebook experiment on almost 700,000 users' emotions continues to burn, causing the research team to mount a public defence. For a week in January 2012, researchers tweaked users' news feeds to expose them to more positive or negative posts. They found a corresponding impact on what the affected users shared. In the subsequent paper they declared this proof of online emotional contagion. The publication of the report has prompted thousands of protest posts on social media, as well as concerns from leading academics and psychologists who have raised concerns about the ethics involved.

http://www.smh.com.au/digital-life/digital-life-news/facebooks-adam-kramer-defends-controversial-emotion-manipulating-study-20140701-zsrld.html