Reform SCDOT - - Grassroots organization for better South Carolina transportation policies; includes problem areas, roads that should not or should not have been built, newsroom, and weblog.
SC Heritage Corridor - - Promotes economic development in rural areas of the state through heritage tourism in 14 counties by highlighting natural and historic attractions; includes routes, maps, and regional trivia.
SC Transportation Policy and Research Council - - Organization to support and promote positive transportation initiatives in the state; includes news, current events, and related links.
South Carolina Aviation Association - - Promotes and encourages aviation and airport development to meet air transportation needs and assist the state in achieving economic development goals. Includes membership information and calendar of events.
South Carolina Railroad Stations - - Includes photos and brief histories of the Southern, Atlantic Coast Line, Seaboard Air Line, Seaboard Coast Line train stations.
Traffic Patrol Broadcasting, Inc. - - Provides ongoing reports of commuter traffic conditions in metropolitan areas across the Carolinas.