Marketing and Advertising
Association of International Product Marketing and Management - http://www.aipmm.com/
The world's largest professional organization of product managers, brand managers, product marketing managers and other individuals responsible for guiding their organizations and clients through a constantly changing business landscape.
Business Leads - http://www.discount-business-leads.com/
Specialising in business to business mailing lists and leads.
Canadian Institute of Marketing - http://www.professionalmarketer.ca/
An organization of professional marketers whose credentials are based upon a strong and lengthy period of education in marketing, and/or business management with marketing responsibilities.