Useful Lnks
PR Evaluation Companies
aa	CARMA International
aa	Delahaye
aa	Echo Research Ltd
aa	Metrica
aa	Millward Brown Precis Ltd
PR Associations & Bodies
aa	Public Relations Society of America
aa	Public Relations Consultants Association
aa	International Communications Consultancy Organisation
aa	Institute of Public Relations, UK
aa	Institute for Public Relations Research and Education
aa	International Public Relations Association
Audience & Circulation Sources
aa	Audit Bureau of Circulations Ltd (ABC)
aa	The National Readership Survey (NRS)
aa	Broadcasters' Audience Research Board (BARB)
aa	Radio Joint Audience Research (RAJAR)