Pages that sell goods and services are great for price comparisons, market research, or researching a company. Web sites that pose as informative or as advocacy organizations, but instead exist to sell you something, are poor candidates for your research.
Term paper mills are also awful places to look for information. These sites seldom offer their papers for free, and even when they do, the authors are often either students or desperate, overeducated, unemployed people out to make a fast dollar.
Here are two pages that are probably NOT good choices for your research.