Ask HN: What would you want (or Not want) on a dead-simple free niche jobs site

I"m interested in creating a free job listing site for a specific industry that currently doesn't have one. What should it do? What should it not do? Things I'm fairly certain it should do: -Popular listings should be visible immediately on the front page. -No images, just text and very few graphics. -Listings should be free. -Users should be able to flag iffy-looking listings. -There should be search. -Jobs should be browse-able by location, type of job, experience level and compensation. -Users will be able to tweet out a job listing, e-mail it to a friend or bookmark it using other services. Things I see on the pay sites that should be left out: - letting job seekers post their resumes - message board - industry news and gossip - industry event listings - weekly news letter with editorial content on the industry Things I'm on the fence about: - RSS feeds for sub-sections of job listings - E-mail alerts for new listings in keywords the user wants to track - A customizeable widget that people can embed on their sites with the latest listings. There are 3 sites currently focused in on just this industry. One charges $80 per listing. Another charges $250. The other is $150. When I talk to friends in this industry, the default that everyone goes to is the $80 site. Thoughts? Am I already doing too much? Too little?