Depends on the vendor. Newegg is an awesome vendor, I've bought all kinds of stuff from them. I like rockauto for auto parts and they give you refrigerator magnets too they mainly want shipping information and payment information.
You should be careful with a vendor you're not familiar with, do searches about them, because there are scams, and be careful about phishing schemes and so on, and be careful to check your own computer for malware, but it's mainly a really good way to get stuff I like going to physical stores when I can, just because it's faster, but quite often the stuff I want to get is only available online.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.