I'm a big fan of niche job boards (I run api-jobs.com). I think the pricing might be a little high without some broader distribution though. For instance, featu

I'm a big fan of niche job boards (I run api-jobs.com). I think the pricing might be a little high without some broader distribution though. For instance, featured listings on my site are syndicated on ProgrammableWeb. Either way if you can find an untapped niche, they're pretty easy to run for passive income.