Ask HN: Where do your peers hangout online?

I'm currently looking to hire and know of a few dark corners of the internets that I can look to for recruiting. As I sat and thought about it, there are likely lots of places I don't yet know about. I think those of my ilk mostly lurk in Reddit, somewhat in HN, but mostly are following the same blogs that I am (though I don't want to do recruiting there).

Do you know where your communities are? How did find them? Are they discoverable?

Where do you go when going the extra mile trying to recruit?