AdvertisePost.com is a comprehensive directory providing advertising information and resource such as internet marketing, internet advetising, free advertising, public relations, design services, promotional items and more.
Virtual Media Resources Provides marketing and media research, demographics, PRIZM geodemography and related services; site also includes links to media and advertising research sites. http://www.vmr.com/
WireBridge Corporation Offers a full range of market research and planning services to companies of all sizes. http://www.wirebridge.com/
Yankelovich Partners Marketing research and consulting organizations with an international affiliate network spanning over 20 countries. http://www.yankelovich.com/
