Before you send out a resume, or show up for that interview, you'll want to know all you can about the company's position in the industry. In other words, how competitive is the company, who are its major competitors, and how does the future look for both the industry and the specific company that you are focused on.
The library's databases bring together the best of credible information on your company and industry. If you are knowledgeable about your prospective company, you will be prepared to ask intelligent questions if you land an interview.