One problem with finding a job is the paradox of choice. The more choices you have, the harder it is to make a final decision. That's especially true of startups, where there are literally thousands of potential options and no practical way to evaluate them all.

What if you curated a weekly mail that features amazing jobs the way that Groupon features amazing deals? You'd have to select only the best, hacker-friendly companies. I think simply filtering through all the cruft would put you at a huge advantage to all the conventional job boards. In fact, even people who aren't actively looking for jobs might sign up, since they don't have to do any work, and there's always a possibility that their "dream job" may come along.

The other advantage of having a small number of featured jobs is that you avoid half of the two-sided market problem. You still have to get engineers to subscribe, and a small number of jobs to seed the list, but if you're a good hacker, you could probably start with your personal network for both.