APTA: Maine Transit
- Information from the American Public Transportation Association.
- http://www.apta.com/links/state_local/me.cfm

City of South Portland Bus Service
- Bus service throughout the city of South Portland, Maine. Schedules, fares, and route maps available.
- http://www.southportland.org/index.asp?Type=B_BASIC&SEC=%7B5B00AA02-CFA6-43A4-9CA3-6E0A11F4B7C3%7D

Shuttlebus-Zoom
- Large bus company operating in Maine. Site has extensive information on all lines, including schedules, fares, and maps.
- http://www.shuttlebus-zoom.com/

Cooperative Alliance for Seacoast Transportation
- Provides bus service between New Hampshire and Maine. Information on schedules and fares.
- http://www.coastbus.org/

Chebeague Transportation Company
- Provides ferry service to Chebeague Island, Maine. Schedule and fare information available here.
- http://www.chebeaguetrans.com/