I have been in contact with a number of people who's title is "recruiter". They all know of job prospects for multiple companies, so they don't seem to be attached to one company. I've heard getting work through a recruiter is generally a negative thing, as they take a portion of the pay as long as you continue to work for the employer they found for you. Is this true?
How exactly do recruiters work, do companies with an opening pay them to do this, and if the company is large enough have in house recruiters?