APTA Heritage Trolley
The APTA Streetcar and Heritage Trolley Subcommittee was formed to promote the development of vintage/heritage trolley lines and modern streetcar lines in urban centers, to foster information exchange among those planning or operating such lines, and to encourage reasonable technical and safety standards.
APTA: The American Public Transportation Association
An international organization for the bus, rapid transit and commuter rail systems industry, APTA works to ensure that public transportation is available and accessible for all Americans in communities across the country.
Center for Transportation Excellence
The Center for Transportation Excellence is a non-partisan policy research center created to provide research materials, strategies and other forms of support on the benefits of public transportation.
Cyburbia
Cyburbia was founded in 1994, and is the Internet's oldest continuously operating planning-related Web site; it functions today as a portal and busy social networking site for planners and others interested in the built environment.
Federal Transit Administration's TOD and Joint Development Page
The Federal Transit Administration (FTA) has a page devoted to Transit-Oriented and Joint Development programs. There you will find links to resources as well as technical guidance.
Light Rail Now
The Light Rail Now Project believes that presenting facts, reliable information, and well-supported arguments is the way to counteract the avalanche of misinformation and misconception about mass transit. They are an excellent resource.
Light Rail Transit Association
Information and campaigning about better public transport through trams, tramways, streetcars and light rail transit systems.
Planetizen: The Planning and Development Network
Planetizen is a public-interest information exchange provided by Urban Insight for the urban planning, design, and development community.
Project for Public Spaces
Project for Public Spaces (PPS) is a nonprofit organization dedicated to creating and sustaining public places that build communities. PPS was founded in 1975 to build upon the pioneering Street Life Project of writer-sociologist William H. Whyte.
Smart Growth America
Smart Growth America is a coalition of organizations working to improve the ways we plan and build the towns, cities and metro areas we call home. The coalition advocates on behalf of historic preservation, the environment, farmland and open space preservation, and neighborhood revitalization.
Surface Transportation Policy Project
The Surface Transportation Policy Project is a nationwide coalition working to ensure safer communities and smarter transportation choices that enhance the economy, improve public health, promote social equity, and protect the environment.
UrbainRail.net
UrbanRail.Net is an independent resource got information on metros, subways, or similar urban rail transit systems around the world. UrbanRail.Net gives you a general overview of each city's metro system and links you to other relevant sites.
Urban Land Institute
The Urban Land Institute is a nonprofit education and research institute, and an influential source of objective information on urban planning, growth, and development.