If it says Set next to amazon then your hubpages account is linked with your amazon affilate account. That does not mean you are earning from clicks on your amazon products. You only earn on amazon when someone actually buys something that you place in your hubs and for that you need to insert the amazon capsule.
You will get paid by amazon when someone buys the products you place in your hubs. If they just click on them but in the end don't buy them then you will earn nothing.
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.