• American Farm Bureau
   
• American Soybean Association
   
• Illinois Corn Growers Association
   
• Iowa Corn Growers Association
   
• National Corn Growers Association
   
• National Grain and Feed Association
   

• United Soybean Board

Related Organization Sites:

• American Association of Port Authorities

• American Land Conservancy

• American Petroleum Institute

• American Salvage Association

• American Waterways Operators

• Coalition to Protect the Missouri River

• Gulf Intracoastal Canal Association

• Independent Liquid Terminals Association

• Inland Rivers Ports & Terminals

• National Audubon Society

• National Mining Association

• National Rivers Hall of Fame

• National Waterways Conference

• National Conservancy

• Living Lands and Waters

• Port of Pittsburgh Commission

• Propeller Club

• River Industry Bulletin Board

• Tennessee-Tombigbee Waterways Development Authority

Government Sites:

• Institute for Water Resources

• Navigation Information Sharing

• Office of Management and Budget
   

• Olmsted Locks Construction Program

• United States Senate

• U.S. Army Corps of Engineers

• Corps Civil Works Program: Value to the Nation

• U.S. Corps of Engineers Digital Visual Library

• U.S. Coast Guard

• U.S. Department of Transportation

• U.S. House of Representatives, Committee on Transportation & Infrastructure

• U.S. Maritime Administration