Our members are our greatest resource.
The following links may be of help to you:
http://www.apta.com/ - American Public Transit Association (APTA)
http://www.asce.org/ - American Society of Civil Engineers (ASCE)
http://www.aar.org/ - Association of American Railroads (AAR)
http://www.bts.gov/ - Bureau of Transportation Statistics (BTS)
http://cscmp.org/ - Council of Supply Chain Management Professionals (CSCMP)
http://cutc.tamu.edu/ - Council of University Transportation Centers (CUTC)
http://www.iienet.org/ - Institute of Industrial Engineers (IIE)
http://www.ite.org/ - Institute of Transportation Engineers (ITE)
http://www.logisticsnetwork.com/ - Logistics Network
http://www.mhi.org/ - MHI (Material Handling and Logistics trade association)
http://utc.dot.gov/ - Research and Innovative Technology Administration (RITA) University Transportation Centers
http://www.siam.org/ - Society for Industrial and Applied Mathematics (SIAM)
http://www.trb.org/ - Transportation Research Board (TRB)
http://www.werc.org/ - Warehousing Education Research Council professional association
http://logisticsdegree.net/global-shipping/ - 95 Key Websites on Global Shipping and Freight