American Customer Satisfaction Index - independent measure of household consumption experience. The ACSI tracks trends in customer satisfaction and provides benchmarking insights of the consumer economy for companies, industry associations, and government agencies. Some data is available for free, while other parts of the site require a subscription.
Business.gov Market Research guide from the Small Business Administration that walks you through the market research process and includes links to government data sources.
Pew Research Center surveys and reports on the attitudes, opinions, and lifestyles of Americans. Including the Pew Internet and American Life Project, Pew Global Attitudes Project, and Social & Demographic Trends.
Survey of Consumer Finances is a product of the Federal Reserve and contains information on the financial and demographic characteristics of U.S. families.