Cost Structures:
as email gets easiest, it becomes least effective way to influence someone.
Coordination+Provision Problems
http://www.pledgebank.com/Electric
http://fundable.org/
Neighborhood Informatics:
ThinkNOLA.org
Neighborhood Knowledge LA
ineighbors.org
daviswiki.org
txt-ing:
Sara's experience in Benin: new candidate entered presidential election late in the game. People started txting to get friends to register to vote, then organized buses with music and eye-catching behavior to get people to vote.
