AllBusiness - Secondary vs. Primary Market Research
All Business explains the difference between secondary and primary research, and links to several short articles that provide information on conducting market research.

Calgary Business Information Centre
Canada Business identifies the pros and cons of different types of primary market research.

60 Second Guide to Market Research
All Business also provides an overview of how to develop a market research strategy for your small business.

Inc.com – Market Research
Inc.com has a collection of articles about market research, including low-budget suggestions for conducting your own market research.