You ll want to learn as much as possible about potential employers, your occupation, and your industry. There is no such thing as having too much information in a job search.
Information is power.
Information gives you control and confidence. Prior to the Internet, employment research meant spending a lot of time at the library gathering and studying books, periodicals, articles, and business literature. It also meant attending professional meetings, networking, and going to informational interviews. While the Internet has not eliminated any of these activities, it has made many of them easier. Electronic Directories Printed directories are a common source of information.