Center Acer
http://www.centreacer.qc.ca

Ministère de l’Agriculture, des Pêcheries et de l’Alimentation
http://www.mapaq.gouv.qc.ca

University of Vermont Extension
http://www.uvm.edu/~uvmaple

Proctor Maple Research Center
http://www.uvm.edu/~pmrc/

Cornell University, New York State
http://maple.dnr.cornell.edu/

Ontario Ministry of Agriculture, Food and Rural Affairs
http://www.omafra.gov.on.ca/french/

Agricultural Canada Statistics on Maple
http://www.statcan.gc.ca/bsolc/olc-cel/olc-cel?catno=23-221-XIB&lang=eng

U.S. Department of Agriculture Statistics on Maple
http://www.usda.gov/nass