A good business library will have company directories and financial reports, periodical indexes, industry information and forecasts in hard copy. Work with a headhunter who specializes in your professional field. Follow up your application with calls to the company. Keep a record of your job search. It's important to be organized in keeping track of the contacts that you make and the date resume was sent, who the resume was sent to, and what written materials were included.
Job searching can be quite an emotional roller coaster.
Remain confident of your abilities, and be prepared for a rejection or two.