American Association of Advertising Agencies(site info)
National trade association founded in 1917 that represents the industry in the United States. Site offers a database for advertisers to search for a new agency; member profiles and links to their sites; legislative issues; career, award and event information.
http://www.aaaa.org/
4.
American Advertising Federation(site info)
A national network of 210 clubs. Connects the industry with an academic base through its 210 college chapters. Site features club news, governmental issues, events calendar and awards.
http://www.aaf.org/