Ideally, you have already researched careers and occuptions before you began your job search. Now that you have narrowed your choices you should determine what kind of employers you want to target. Understanding the industry you want to work in and the role you want to play in that industry is an important job search strategy.
Learn about the company mission, products, services, and their clients. Learn about the workplace culture, location, how many employees they have, recent announcements, and innovations. This will put you in an excellent position to make an obvious connection between your skills and their needs when you develop your resume and cover letter. Conducting extensive employer research is a "must do" for interview preparation.
Can you see the difference?
Impact with research (+)
"I read about your recent merger with Verizon. How will the services you provide be affected?"
"I saw you opened a store in Rochester. I am interested in an internship in this location."
Impact without research (-)
"What do you do?"
"Is Alliant an insurance company?"
An employers own website is a major source of information about the company and its management.
Sources for Researching Employers