Business Source Complete-searching this and other business databases using terms life "demographics", "consumers", "markets" in combination with a product or industry can be effective in locating consumer demographic information.
Consumer Expenditure Survey-contains information on the buying habits of American consumers, including data on their expenditures, income, and consumer unit characteristics
PsycINFO-psychology database that is useful for finding articles on interpersonal communication, leadership, organizational behavior, and consumer behavior.
American Time Use Survey-measures the amount of time people spend doing various activities, such as paid work, childcare, volunteering, and socializing. From the Bureau of Labor Statistics.
American Consumer Satisfaction Index-ACSI measures consumer satisfaction with more than 200 companies in 43 industries plus the federal government. Each quarter a set of industries is updated with detailed analysis. Click on ACSI Scores & Commentary.
National Retail Federation-Industry Information-focuses on the retail industry, but provides valuable research reports on consumer trends.
Arbitron-look in the right-hand column for some free media and consumer studies, and media ranking and rating reports