Transit Oriented Development Advocate  
   Case studies of light rail station area planning and transit oriented development.
   http://www.todadvocate.com/

Carfree Cities  
   A collection of examples and solutions for achieving car-free cities.
   http://www.carfree.com/

National Transit Institute  
   Training, education, and clearinghouse services in support of public transportation in the United States.
   http://www.ntionline.com

EPA - Office of Transportation and Air Quality  
   Protects public health and the environment by controlling air pollution and encouraging travel choices that minimize emissions.
   http://www.epa.gov/otaq/

Surface Transportation Policy Project  
   U.S. activist website includes current news and topical analyses about a variety of transportation planning topics.
   http://www.transact.org/

Bike Plan Source  
   Bicycle planning, advocacy, and program development. Features a planning guide, resource list, and news.
   http://www.bikeplan.com/

Transport Model for Scotland  
   A multi-modal model covering strategic inter-urban travel within Scotland.
   http://www.tmfs.org.uk/

Association of Metropolitan Planning Organizations  
   A nonprofit organization serving metropolitan planning organizations.
   http://www.ampo.org/

Census Transportation Planning Package 2000  
   Special tabulations from the 2000 U.S. Census designed for transportation planners.
   http://www.fhwa.dot.gov/ctpp/

Transportation Research Board  
   Promotes innovation and progress in transportation by stimulating and conducting research, facilitating the dissemination of information, and encouraging the implementation of research results.
   http://www.trb.org

Pedestrian and Bicycle Information Center  
   Information about health and safety, engineering, advocacy, education, enforcement, access and mobility.
   http://www.pedbikeinfo.org

Resurfacing Safety Resource Allocation Program  
   Free Access and Excel templates allowing highway agencies to optimize traffic safety improvements in conjunction with resurfacing projects.
   http://rsrap.org/

Texas Transportation Institute  
   Official research agency for the Texas Department of Transportation and the Texas Railroad Commission, devoted to solving transportation problems.
   http://tti.tamu.edu/

Traveller Information Systems Research Report  
   An examination and comparison of transportation systems in American and Swedish cities.
   http://www.itsnottingham.info/wcmt/

Reconnecting America  
   A national organization focused on the link between transportation and community development, providing resources on transit-oriented development, intercity travel, and new urbanism.
   http://www.reconnectingamerica.org/

Transport Blog  
   Economic libertarian group weblog. Includes personal opinion and discussion of transport and related topics.
   http://www.transportblog.com/

Richard Drdul Community Transportation Planning  
   Slideshows about sustainable transportation practices, including traffic calming and bicycle planning and design [PDF files].
   http://www.drdul.com/

Center for Urban Transportation Research  
   Objective transportation research resource maintained by the College of Engineering at the University of South Florida.
   http://www.cutr.usf.edu/

Let's Walk to School...  
   Official site of the "Walk to School" initiative in the UK, including information on events and resources for teachers, parents, and students.
   http://www.walktoschool.org.uk/

Living Streets  
   UK based campaigning organization for pedestrians and public spaces. Initiator and stakeholder in many practical projects to improve quality and safety of streets (formerly the Pedestrians Association).
   http://www.livingstreets.org.uk/

CityTrans China  
   International transportation and planning exhibition and conference, held in Shanghai.
   http://www.citytranschina.com/

Promotional Materials Clearinghouse  
   Archive of transit and transportation demand management marketing materials that facilitates sharing of ideas among public transportation professionals in the U.S. and Canada.
   http://nctr.cob.fsu.edu/

Transit Oriented Development - King County, Washington  
   Promotes high density mixed-use development around major transit facilities.
   http://www.metrokc.gov/kcdot/alts/tod/

Urbanbikes.net  
   Promotes sustainable transportation models in developing nations to local and national governments.
   http://www.urbanbikes.net/

Victoria Transport Policy Institute  
   An independent Canadian research organization dedicated to developing innovative and practical solutions to transportation problems.
   http://www.vtpi.org/