I've been on the hunt for a while and I'll echo these sentiments. Indeed, Zip, Monster, LinkedIn, most of them are just 'ghost' jobs. Maybe they already have an internal candidate, maybe they have had the posting up for 2 years, maybe they are recruiters that are just fishing idly. There's a million reasons, but they all end up being just a time suck and resume black-hole.

Look, I know: network. That's the way to get work. But I suck at networking. I don't feel that it's because I'm unsociable, it's that I don't know anyone that that is working at a place that is hiring. All my contacts are in my same boat of shitty jobs in a shitty area (biotech-denver)

Does anyone know how to break out into another region where you don't know anyone? How to do remote-networking?

I agree with everything you say, but I also think that it's incredibly unlikely Facebook will curate jobs any more than they do the rest of the content in Facebook. You're right about the opportunity to improve recruitment in these aspects, but it's not going to be Facebook that does it.