I've been getting large numbers of marketing questions in the past week or so. Here's a resource that might be helpful with market segmentation; Market Segmentation: A Guide to Sources of Information. The Library of Congress has compiled an extensive and useful listing of resources, both print and Internet, that focus on market segmentation. The guide is easy to use and is well organized. The introduction gives a good definition and explanation of market segementation. Sections are divided into generational, ethnicity, geographic, gender, gay/lesbian, and lifestyle and include books, articles, and Internet resources. Some of the books are available here at Morgan Library. If not, you can request them through Prospector, the regional catalog, or through inter-library loan.