Institute of Advertising Practitioners in Ireland
Represents the Irish advertising industry, IAPI features advertising news and issues, research and data archives, technical data, careers advice, and pan-European level information.
http://www.iapi.ie/

Outdoor Advertising Association of America
Working to promote, protect and advance the outdoor advertising industry.
http://www.oaaa.org/

Advertising Red Books
The Advertiser Red Books deliver the quality and depth of information necessary for thorough research on agencies and advertisers worldwide. Today and for the past 100 years, they are the industry Bible.
http://www.redbooks.com/

Flynn/Wright, Inc.
A full service advertising, marketing, public relations, media and research advertising agency. (Des Moines, IA -USA)
http://www.flynnwright.com/

Odney Advertising
A full service agency producing results for our clients through smart advertising, marketing and public relations.
http://www.odney.com/

Marketindex
Offering market research, PR, advertising placement, and design for advertising, corporate identity, packaging, wobblers, and training materials. Online client list, gallery, and biographies of staff. Blackpool, Lancashire,.
http://www.marketindex.co.uk/

Inteactive Advertising Bureau
Global nonprofit group open to companies actively engaged in the sale of interactive advertising and marketing. Membership features IAB events, research tools, industry news, and a newsletter.
http://www.iab.net/

Lieberman Research Worldwide
Lieberman Research Worldwide (LRW) marketing research specializes in market segmentation, brand equity, advertising, new product and customer satisfaction research, with a consulting orientation.
http://www.lrwonline.com/

Barbeau Hutchings Advertising
Barbeau Hutchings is a full service business-to-business advertising agency that specializes in the high technology fields, including; analytical instruments, automotive, chemicals, optical and electron microscopes, microelectronics, flat panel displays, industrial gases, vacuum products, and analytical and medical xray.
http://www.bhaadvertising.com/

Media Vest
Starcom is a full-service media agency.
http://www.mediavest.co.uk/