America Walks
Local pedestrian advocacy, public education, and a collective voice for pedestrians.
Carfree.com
Images and information on carfree city presented by the author of "Carfree Cities." Also features an on-line quarterly newsletter "Carfree Times."
Ecoplan International
Think tank on sustainability and urban issues; host organization for The Commons, an internet-based open forum with discussions on car-free days, car sharing and more.
Engwicht Communications
David Engwicht's books, videos and innovative traffic reduction tools.
Institute for Transportation & Development Policy (ITDP)
Focuses on counteracting the export of American-style transportation policies to the developing world.
International Making Cities Livable Council (IMCL)
International network dedicated to making our cities and communities more livable.
Mobil ohne Auto
German carfree day website, organised by Umkehr and BSÖ (Bundeskoordination studentischer Ökologiearbeit).
Project for Public Spaces
Works with local groups and authorities to establish healthy public spaces, often by taking space away from car infrastructure.
Reclaim The Streets London
The infamous direct action group that developed the "street party" concept.
Surface Transportation Policy Project
National transportation reform coalition with over 500 coalition partners; works on national and state legislation and policy.
The SUSTRAN Network (Sustainable Transport Action Network for Asia and the Pacific)
People-centered, equitable and sustainable transport, with a focus on Asia and the Pacific.
Victoria Transport Policy Institute
Free reports and research available on their website. Links to just about every organisation on the planet working on transport issues.