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Quick Mba: Marketing Research
An in-depth site on marketing research. Discusses what marketing research is, the steps in the marketing research process, types of research methods to use, data collection methods, and much more!
Encyclopedia Britannica
Encyclopedia Britannica: Sociology
A very detailed look at the development of the field of sociology. Looks at its historical roots, the earliest sociologists, and explains major theories that it was based on, and theories and schools of thought that evolved from those....
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Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.