Just today Facebook announced the release of a new beta feature that they are banking on to enhance their user experience and essentially keep the users onsite. They spoke directly about recruiters in the release as well.Read about it here

BUT

That reminded me of the Pay to promote your post option. I have never paid but did you? Is it a viable option for corporate companies that want to place their job at the top of their fans pages?

How much you pay is the variable. You can bid but there is also a ground floor entry fee based on your reach, demographics etc.

See the screen shot below: