With an explosion of job seekers competing for fewer jobs, many people are turning to recruiters to try to tap into little-known opportunities in the job market.If you're enlisting this strategy in your job search, it's critical that you understand the possibilities and limitations of working with a recruiter, as well as how to present yourself throughout the process. Louise Kursmark, author of "15-Minute Cover Letter," says the most important thing to remember about recruiters is that they