Employment sites work in different ways. Some also provide job-search help, such as advice on resume writing or interviewing. Still others will automatically notify job-seekers when an opening in their field comes up. AJB is a service of the U.S. Labor Department and state employment agencies. Moreover, using a job bank doesn't require technical expertise.
Most job banks contain instructions for exploring their sites.
Using the Internet to search for a job has other advantages. Most employees can't hunt for a new job while at work. Close study of Internet job sites gives insights into a prospective employer's needs. You can get a feel for where the jobs are and what it takes to be qualified. In preparing for a job interview, corporate home pages on the Internet can be a gold mine of information about a prospective employer.