IAA global
Champions common interests across the full spectrum of marketing communications, from media companies to agencies to direct marketing firms. http://www.iaaglobal.org/
Ad Council
Private, nonprofit organization of volunteers that conducts advertising campaigns for the public good.
GFAF
Comprised of individuals who either purchase, produce or use advertising.
EPHMRA
Organization for pharmaceutical strategic intelligence and marketing research professionals. Includes information on membership, meetings, activities, and related resources.
ASSAP
AssAP offers information about the association and a guide to online market research and marketing (English version and U.S. mirror sites available).
PMRG
Independent, non-profit association focused on stimulating marketing research in the pharmaceutical industry. Includes a newsletter as well as information on members and events.