2009 study by Stanford University in the Proceedings of the National Academy of Sciences on mental effects of consumption of several media streams at once.

2011 study by Columbia, University of Wisconsin-Madison and Harvard on effects of Internet search engines on human memory.

2011 study in the Policy & Internet Journal on claims that mass email techniques used to mobilize people reduce activist energy.

2011 study by the Pew Research Center on levels of trust, tolerance and engagement among social networking users.

2011 study by the University of California, Irvine, on how users determine personal privacy settings on social networks.

2010 study by Mississippi State University published in Natural Hazards on the effectiveness of a large university’s emergency warning system.

Pew Research Center report surveying online participation during election season.

2010 study by Columbia University’s Tow Center for Digital Journalism on the difficulties for media organizations of understanding their online audiences.

2010 study for the Association for the Advancement of Artificial Intelligence on how social media users wield influence.

2009 paper by the Pew Internet and American Life Project on the rate of cell phone use while driving among American teenagers.