You get revenue anytime that a visitor to any of your hubs clicks on an add that is placed there by Google/HP. You may as well sign up for Adsense since the adds will show on your hubs anyway. By linking to any other site, lets say "She Told Me So", visitors can follow your links and you get revenue that way too when they click on adds/view your hubs.
If possible, try to sign up for the new Ad Program that just became effective recently. It pays for views of your hubs instead of clicks.
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.