Ghost jobs are job listings that don't actually exist or may not be available. They can be posted for various reasons, such as broadening the talent pool or collecting resumes for future vacancies. To avoid frustration, job seekers should check multiple sources to confirm the legitimacy of a job posting. Building personal relationships, leveraging references, and attending industry events can increase your chances of finding a real job. While online applications can be helpful, they should not be your sole strategy for job hunting.