Best of the Web

KnowThis.com

Information and resource website for those involved in marketing, market research, advertising, selling, promotion, and other marketing-related areas.
NYPL - Market Research Information at SIBL

Research Guide to Market Research resources at the Science, Industry and Business Library
The Green Book of Market Research Companies

The GreenBook website features the entire directory in a user-friendly and interactive format. Multiple search options deliver accurate and relevant results quickly, including email and web links. A 'Request For Information' tool is also available.