The Concerned Citizens of the Sea Islands
- Advocates for transportation improvements to Johns Island's exsiting roadways to take precedence over the Mark Clark Extension. Includes reasons not to build I-526, upcoming meetings, and online petition.
- http://www.no526.com/

Creative Transportation
- Providing transportation shopping service to buy, sell and trade luxury aircraft, motor coaches, mega yachts and exotic automobiles with other owners.
- http://creativetransport.com

Charleston International Airport - CHS
- General information on the airlines, facilities, general aviation, parking and ground transportation. History, contacts, flight schedules, weather, maps, news releases, and employment opportunities can also be found.
- http://www.chs-airport.com/

Charleston Area Regional Transportation Authority
- Offers information on bus routes, passes, rates, news, and special services.
- http://www.ridecarta.com/