With the advent of sites like Linkedin, Github, Behance and others that contain publicly available profiles, job boards face a conundrum since they typically have private only resume search.
But they need to evolve with the times.
The trend now is making your job seeker “profiles” open to search engines so candidates can be found. I believe this is the future model job boards will need to follow. It provides more benefit to the candidate since it offers them more ways to be found.
But job boards will not be able to charge for resume access if this happens.
I never saw much value in charging for resume anyway so perhaps its better off to make your resumes/profiles open to Google’s crawler. Some job boards like Monster/Dice/CB can still charge because of the sheer amount of resumes in their database but any new job board will do better by making them public.