Hacker News Jobs
If only HN had a jobs board for non-YC companies. As a hiring manager I'd pay $$$ to be able to advertise on that page. Currently, I can pay referral fees to employees, ridiculous % to recruiters, or a fortune to the likes of LinkedIn.
The HN community is of high quality and could easily be monetized. I realize that PG doesn't need to do this (or perhaps) want, but I bet there are many others here (job seekers and hiring managers) who would benefit from such a service.
Perhaps I should just hack the arc code and send it to PG :-)