Communication and political mobilization: Digital media and the organization of anti-Iraq war demonstrations in the US

The speed and scale of mobilization in many contemporary protest events may reflect a transformation of movement organizations toward looser ties with members, enabling broader mobilization through the mechanism of dense individual-level political networks. This analysis explores the dynamics of this communication process in the case of U.S. protests against the Iraq war in 2003. We hypothesize that individual activists closest to the various sponsoring protest organizations were (a) disproportionately likely to affiliate with diverse political networks and (b) disproportionately likely to rely on digital communication media (lists, Web sites) for various types of information and action purposes. We test this model using a sample of demonstrators drawn from the United States protest sites of New York, San Francisco, and Seattle and find support for our hypotheses.