Transportation Corridor Agencies
- Builds and manages toll roads in the county. Includes toll and transponder information, proposed extensions, and discounts.
- http://www.thetollroads.com

Go Rent-a-Van.
- Specializing in renting vans and sport utility vehicles.
- http://govans.com

Open Water Plan
- South County Association of Municipalities' (SCAM) plan for the conversion of Newport Harbor from yacht harbor to deep water port.
- http://www.occonnect.com/trustme/

John Wayne Airport
- General information on Orange County's John Wayne Airport (SNA), including timetables and other useful information
- http://www.ocair.com

Orange County Transportation Authority
- Local bus agency. Includes schedules, fares, and route information.
- http://www.octa.net/

Caltrans District 12 - Orange County
- Orange County District of California's Department of Transportation, includes information on freeway construction and road closures in Orange County.
- http://www.dot.ca.gov/dist12