Canada
National Institutes of Health Informatics - http://www.nihi.ca/
Canada’s Health Informatics Association - http://coachorg.com/
Canadian Health Information Management Association - https://www.echima.ca
Canadian Nursing Informatics - http://cnia.ca/
USA
American Medical Informatics Associations - http://www.amia.org/
Health Information and Management and Systems Society - http://www.himss.org/Index.aspx
International
International Medical Informatics Association - http://www.imia-medinfo.org/new2/