Marketing Research: Market Research

From the U.S. Census Bureau - an excellent source for a variety of demographic information.

The American Customer Satisfaction Index (ACSI) is the only national cross-industry measure of customer satisfaction in the United States. The Index measures the satisfaction of U.S. household consumers with the quality of products and services offered by both foreign and domestic firms with significant share in U.S. markets. Search by company, sector, industry, and more. Comprehensive reports available after free registration.

Nielsen MyBestSegments allows you to examine U.S. consumers through the lens of Nielsen Segmentation systems Nielsen PRIZM, Nielsen P$YCLE and Nielsen ConneXions. Using descriptive segments with detailed demographic and lifestyle traits, you can use Nielsen Segmentation to obtain a comprehensive view of customers.