I wouldn't feel quite right about charging the job seekers as typically a lot of them are unemployed and thus money can be tight. The incentive for a company here would be cheaper labour so its already a saving for them by having a large pool of potential junior or entry level candidates to advertise to.
Thank you so much for taking the time to give your feedback, I will take it into consideration and see how things work out as time goes on for the site :)
Where you able to find some suitable nursing jobs on the site? If not I will see what I can do to make sure those results are coming onto the site for you and your fellow nurses looking for those jobs.