[Air-l] Online Activism -- empirical research references?

[Kathleen O'Riordan]

These all have empirical chapters: 

Cyberactivism: Online Activism in Theory and Practice
(eds) M McCaughey,  M D. Ayers, 2003

Cyberprotest: New Media, Citizens and Social Movements (eds) W. Van De Donk et al, 2004

Global Media, Global Activism (eds) de Jong et al, 2005

all the best
k