A.C. Nielsen www.acnielsen.com

ABC www.abc.com

Advertising Age www. adage.com

Advertising Checking Bureau www.acbcoop.com

Advertising Media Internet Center www.amic.com

Advertising Research Foundation www.arfsite.org

Advertising World advweb.cocomm.utexas.edu/world/

Adweek www.adweek.com

American Association of Advertising Agencies www.aaaa.org

American Demographics www.demographics.com

American Marketing Association www.ama.org

American Newspaper Network www.amnewsnet.com

American Society of Newspaper Editors www.asne.org

ASI Market Research Center www.asiresearch.com

Association of National Advertisers www.ana.net

Audit Bureau of Circulations www.accessabc.com

Audits & Surveys Worldwide www.surveys.com

Brandweek www.brandweek.com

Burke www.burke.com

Business Publications Audit of Circulation www.bpai.com

CBS www.cbs.com

Competitive Media Reporting www.usadata.com

Diagnostic Research International www.diagnostic.com

Forrester Research www.forrester.com

Gallup & Robinson www.gallup.com

International Federation of Advertising Agencies www.ifaa.com

J.D. Powers and Associates www.jdpower.com

Journal of Advertising Research www.arfsite.org/webpages/jar_pages/jarhome.htm

Journal of Marketing Research www.ama.org/pubs/jmr/index.html

Journal of Marketing www.ama.org/pubs/jm/index.html

Marketing Magazine www.marketingmag.ca

Marketing Research Association www.mra-net.org

Marketing Research www.ama.org/pubs/mr/index.html

Marketing Tools www.marketingtools.com

Marketing www.marketing.haynet.com

Media Central www.mediacentral.com

Media Solutions www.mediasol.com

MediaFinder www.mediafinder.com

Mediamark Research, Inc. www.mediamark.com