Here are some organizations I have found working on using Web 2.0 for sustainable transportation:
- Open Plans (formerly at http://openplans.org/ but have not gone out of business) – umbrella organization for lots of great projects including, streetsblog, streetfilms (the latest video from Streetfilms is embedded above) … wow.
- govloop – Gov Loop is a social network for people working on Web 2.0 in government, the govloop transportation 2.0 group focuses on transport issues.
- Boston the Mayor’s Office of New Urban Mechanics (The Car Is No Longer King) page – interesting projects including super neat Participatory Chinatown game and Boston’s Complete Streets program.
- Games for Change – games will be an integral part in public policy development and implementation (see post on games).
Please add more in the comments!