Welcome to the recruiting space, try not to go crazy :) To get your service started, using email as the main messaging medium is smart as you want to build up your candidate-base, so offering something (in this case, information and job leads) will help you win adopters. Charging on a per job posting basis is a difficult sell as there are literally thousands of others offering very similar services. Showing job-seeker numbers can help motivate the employer to go with you as can past success stories. I'd recommend focusing on achieving those before you start charging. Think about offerings above and beyond just job postings, those are a commodity.<p>I've been running CollegeJobConnect for the past year and be happy to chat with a fellow entrepreneur who is trying to make student recruiting better. This is a really, really difficult space to be a startup in, so as much as we can all help each other the closer we will be to bringing improvement.