• Anger spreads faster than joy on social networks http://www.technologyreview.com/view/519306/most-influential-emotions-on-social-networks-revealed 19 comments 16/9/2013

• Online anger 'spreads faster than joy' on the Chinese social network Weibo http://www.bbc.co.uk/news/science-environment-24158675 5 comments 21/9/2013 science