I use Flashblock on my Firefox browser because of my limited bandwidth where I live. By default Flashblock blocks all Flash web page elements from downloading unless you allow them to be displayed. These are typically ads and of course YouTube - but also the little videos on newspaper websites.
Flashblock would address having multiple videos on the page downloading at same time even if you were only interested in one or two. But it doesn't address starting a YouTube video and then trying to stop the buffering. You can allow certain videos from specific websites to show all the time by right click and setting the "allow from this website" checkbox.
Apologies - not the perfect answer but only one I know about.
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.