I have said it before Yochai Benkler is my hero. (hard to read ..better to watch)
This is a good background on the foundation of what trends are really playing with modern movement organizing. Network-centric advocacy stems from exactly the trends that Yochai introduces here. As Benkler's ides sink in it transforms the way you think about organizing and what is possible.
The challenge for the movement is to think about network production and social change endeavors. The model of radical distributed campaigns are just taking shape in our sector. Long-term campaigns built deliberately around network organizing are just being contemplated by the leaders in our sector.
The web and these networks are going to transform social change movements but not just in fundraising. It could easily be argued that in America today our successful social movements are not dealing with a scarcity problem from a lack of resources (ask AARP).
Money was a problem in social movements. Organizing solved this problem and focused on addressing the scarcity of money (both Presidential opted out of public financing) by compiling small donations.
As time of supporters becomes scarce in political and social organizing the challenge and opportunity for the sectors is to collect smaller parts and build them into something wonderful.