Recruiters will use any kind of information to find candidates.  I once literally got contact information off of a bathroom wall once and, yes, I made a placement.

We won't discuss the industry.

Recruiters seek out the people we place, and we find them anywhere they are. It is what we do - especially good recruiters - we leverage information in order to reach…

I was reading this article from Jim Stodgill the other day, it is really good - make sure you bookmark it and read it. I came across this statement and had to take a beat:

Well, anger in the face of ill-considered certainty is reasonable as far as I’m concerned. Unearned certainty…