47 minutes old and it's already filling with spam. Of the seven gigs listed thus far, two are recruiter spam, and two are full time jobs (though at least seemingly from real companies).
I think you're about to learn what happens if you don't charge companies to post job listings.
Can I suggest that most job sites offer very very deep discounts to recruiters who post a lot of jobs - an add on a site that is nominally 2-400 bucks will barely cost 10 bucks for most recruiters - so contact a dozen or so big recruitment firms, and offer to host their jobs (for free) from their feeds.
I think you're about to learn what happens if you don't charge companies to post job listings.