Ports & Marine Commerce:

• Port of Portland
• Port of Eastport
• Mack Point
• American Association of Port Authorities (AAPA)
• Maine Coastal Marine Facilities Inventory
• Maine Maritime Academy
• Merrill Marine Terminal
• Sprague Energy
• Federal Marine Terminals

Rail:

• Federal Railroad Administration
• Operation Lifesaver
• Association of American Railroads
• Montreal, Maine & Atlantic Railroad Company
• Belfast & Moosehead Lake Railroad
• St. Lawrence & Atlantic Railroad
• Guilford Transportation Industries
  

Air Freight:

• Bangor International Airport
• Portland International Jetport
• Northern Maine Regional Airport
• Airborne Express
• Federal Express
• United Parcel Service (UPS)
• Telford Aviation

Canadian Transportation Agencies:

• Transport Canada
• Canadian Transportation Agency
• Transportation Association of Canada
• Quebec Ministere des Transport
• Newfoundland & Labrador Dept. of Works, Services and Transportation
• Nova Scotia Transportation & Public Works
• New Brunswick Dept. of Transportation
• Prince Edward Island Transportation & Public Works

Commerce

• Journal of Commerce
  

U.S. Government Agencies:

• Bureau of Transportation Statistics
• Maine Department of Transportation
• US Department of Transportation
• Federal Highway Administration
• U.S. Customs Service
• US Department of Commerce
  • - State Export Data
• Maine International Trade Center
• U.S. Coast Guard Marine Safety Office - Portland, Maine
• US Army Corps of Engineers' Navigation Data Center (includes statistics for waterborne commerce in Maine)