Have never done this kind of research before but with a name and some direction, I am ready to help!
My desktop file is already over the megabyte size, and I’ve only scratched the surface. One thing, as you pick up material, mkae sure you list for yourself the web addy to that data, even though much will likely get sanitized before too long. I’m also having to upgrade my Youtube download program, to capture vids that will likely disappear.