Want to know the history of a company or corporation?
The first two things that come to mind are:
1) Hoover's - (company financials and company history) is available inside Campus Research (check the upper left)
Directory of Company Histories, but the interface is kinda confusing and it only contains a few volumes.
Another good source is Encyclopedia of Consumer Brands, which also features good historical information.
Just remembered that Marketline Advantage also has company histories in it. Do a search for your company and it should be included in the company record.
Most of the biggest American companies have books written about them. They are located in the catalog. Just do a keyword or subject search with your company name.
Finally, our digitized copies of older Mergent Manuals often have brief but informative company histories included.