Check to see that you have set up your affiliate settings correctly on HubPages and Google AdSense. Here's HubPages' Learning Center section on setting up Google AdSense. learningcenter.hubpages.com/1-2-setting-..., you can set up each hub on it's own URL channel in Google AdSense.It will let you know how much each individual hub is earning.
There are other earning options besides for adsense. You can also join the amazon, ebay, and hubpages ad program for other ways to earn from your hubs.
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.