Valley Metro
- Bus service for Phoenix and Tempe, Arizona, and surrounding areas. Includes route maps and schedules.
- http://www.valleymetro.org/

Transit Services - City of Tempe
- Bus, bicycling, and other transit information in Tempe. Includes bus route, schedule, and fare information available.
- http://www.tempe.gov/tim/

Mesa's Public Transit
- Public transit information for the Mesa, Arizona area. Provides schedules for bus service.
- http://www.ci.mesa.az.us/transportation/public_transit.asp

Light Rail in Tucson
- Advocacy group dedicated to creating support for a light rail transit system in Tucson, Arizona. Contains facts, figures, and information on how light rail will benefit the community.
- http://www.tucsonlightrail.org/

Sun Tran
- Bus service for Tucson, Arizona and surrounding area. Includes schedule, fare, and route information. Also includes service advisories.
- http://www.suntran.com/