Unpredictability of influence

Is the Tipping Point Toast? (Clive Thompson; fastcompany.com, January 2008)

Vote Your Conscience. If You Can. (Shankar Vedantam; Washington Post, December 2007)

Influentials, Networks and Public Opinion (Duncan Watts, Peter Dodds; Journal of Comsumer Research, December 2007)

Is Justin Timberlake a Product of Cumulative Advantage? (Duncan Watts; New York Times, April 2007)

Experimental Study of Inequality and Unpredictability in an Artificial Cultural Market (Matthew Salganik; Peter Dodds, Duncan Watts; Science, February 2006)