There are three free resources that I use and recommend for small business market research:

The Business Builder tool from the US Census Bureau, Tapestry Market Segmentation on ESRI.com, and Claritas’ PRISM Premier Market Segmentation.

This video provides step-by-step instructions for accessing the Tapestry Market Segmentation data on Esri.com for FREE.

The Esri Tapestry Market Segmentation data includes detailed market segment data for all 67 Tapestry Market Segments.

The level of data available in each Tapestry Segment provide small business entrepreneurs extremely valuable customer insights. It's an excellent resource for anyone looking to plan and strategize effectively for their new business or product.