Google is a Big Technical Guy and it can easily figure out,if you are intently clicking on Ads or Just came across it and clicking the ad as you find it intersting..Google Adsense actually finds your Browing Pattern and how long you stay in the resulting page after you click on the ad. So click on ads if you find them intersting and it will payout..
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.