Although monster.com can get you a job, or could at one time, it's a bit spammy and iffy now, with people known to have ripped peoples' resumes and shopped them around for themselves without permission. Headhunters. They can get pretty determined, to the point where a potential employer might hang up the phone on you because someone's been faxing them your resume every day for the past month.
Depending on how close you live to a metropolitan area,
Craig's List can be a lifesaver. I got an internship through a CL listing, September before last, which eventually led to full employment in that field. But I got the job because I established a good rapport with the salaried guys, who knew people and could help me get work when a position opened up. Internships *can* be solid gold.