The market I'm targeting is college students. The site functions as the missing guidance/career counselor to guide them through school in the area of their choosing.
The edge is that it's a somewhat scaleable form of mentorship because mentors don't have to repeatedly spend time to have influence once they're on the site.
Example: students looking to major and work in software engineering follow the software engineering 'channel' where they see all the top books, videos, resources, etc. that top software engineers found critical to their own formal + informal education.
The goal is to be a powerhouse for this type of content, and the job board is an ancillary benefit that might help visitors. Traditional ads aren't an option. Hence my curiosity in other options.
Anyway, I imagine the people on this site would be highly qualified.
Great point about charging little to nothing and then building from there. Kind of obvious, in hindsight, but in never occurred to me!