No you can't it might get you into trouble. You can use it with Google ad sense when you have your own domain and web site,but not in hub-page platform.
I use Chitika in my websites and they are great. Unfortunately, it cant be used here in Hubpages. The only ad system they allow is Google Adsense.
Goodluck! :).
You can use it in your website (if you have one). Along with or without Adsense.
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.