I started to work on a job board to improve my Node.js / MongoDB skills and I'm thinking of actually launching it. But how do I make my board different from all others? I'm thinking of having a mandatory salary field so that each job would contain a salary range.
Stack Overflow data shows that job ads with salary receive 75% more clicks. https://stackoverflow.blog/2016/07/salary-transparency/#75. Other job sites are reporting 20% - 30% increase in job applications for ads with salaries.
Especially right now, you need to attract candidates who are "passively looking": people who have a job, but would move given a good offer. I do freelance development and consulting, and I'm basically happy with that. I wouldn't turn down a great opportunity, but I'm not going to start the application process unless I know you can beat what I'm already earning.