This database can be very helpful to find market share reports reports, SWOT analyses, industry profiles, etc. Enter an industry, company or product and use the Source Type limits on the left of the screen to select the type of report you want.
Here is a link that describes all of the reports and how they can be used, i.e., what questions do they answer.
For Market Potential Report, look for Segmentation Reports/Lifestyle Reports/Market Potential.