In recent work the HEROIC team examines the behavior of government organizations during the recent bombing at the Boston Marathon. In particular the team looks at the drastic increase in followers that these government accounts experienced during the week of the bombing and subsequent events.
Please see the online research highlight here.
Sutton, J., Spiro, E., Johnson, B., and Butts, C. (2012). “Following the Bombing.” Online Research Highlight. http://heroicproject.org