What Kick said, you might also look into MEWE which is a new facebook rival. I like it because there isn't any tracking or targeting and most of all...
Honestly, most, if not all, of the current various individual author sections are, hmm, how to put it... I don't know how to say what I'm thinking. ...
Depending on the time, type, and place, of training in, or exposure to, security, one might get to overhear lectures about exactly what sort of gear...
Maybe you have everyone that has an area of expertise post or write a blog on preparedness from that angle that could be discussed in its own thread?...