Gorilla Headhunter reveals key research tool
Zoominfo is my research staple. (Source, Recruiting.com)
Wow, straight from a super-recruiter.
Of course, Zoom is more appropriate for some kinds of searches than others.
A lot of people aren't on the net and won't be listed here.
And here's a testimonial of sorts from a librarian.
Richie Ackerman at the Science Library Pad.