I'm working on a remote job aggregation site. I might try to sell it on Flippa one day, I'd like to at least make it break even by selling job posts on it (hopefully I'll never resort to ads).

My motivation was that I 1) wanted such a thing when I was doing my own job hunt several months ago, and none of the existing ones did everything I wanted, and 2) many of the companies I was interviewing with wanted code samples, and all my code was tied up w/ current and previous employers.