I use LinkedIn quite a bit, both to increase my networking, as well as to stalk profiles for OSINT. I've got a lot of friends/acquaintances in different industries that are connected; you never know when you're going to need a specialist in XYZ or need someone on the inside that may know an expert in their field to testify as a witness.

The again, I'm one that believes in the adage "A bird in the hand..."