I have a pretty sizable (75-100) collection of Osprey books, a couple Squadrons, a couple Tankograd, and whatever else I can get my hands on. I'm a bibliophile. I was a student librarian for 7 years (6th-12th), so I read (and copied) stuff in my downtime. I snagged a lot of stuff from the recruiters over the years. The Air Force recruiter kept issues of Air Man for me even. I use the whatever, wherever, however approach to researching.
Whatever works, wherever I find it, and however I can get it. I take any offered help and will help anybody I can.
I take a lot of pics at the Dayton Air Show each year. (Cracked my head pretty good getting a pic of the interior of a Ventura's turret once and will be using that shot if it kills me.)