It's not really about traffic, it's more about the quality of the audience. People posting job listings (really just a special type of ad, BTW..) at a premium c

It's not really about traffic, it's more about the quality of the audience. People posting job listings (really just a special type of ad, BTW..) at a premium cost are very keen to know demographic information about who's looking at those listings. Are they in the right regions/locations? Are they the right level? Are they a group that even engages with job ads? That audience could be as small as 1000 or as large as a million to be worthwhile paying for. Your best bet if you don't have a strong feel for things is to allow free listings initially and then offer upsells (for example, a fee to have the listing mentioned on the site's Twitter account or in a single, tasteful link on the homepage).