I'd say e-junkie is a good alternative to Clickbank, for vendors. Only problem with e-junkie, perhaps, is that they don't have a huge affiliate base (well they do, but I think only a few are 'active' affiliates). So mainly you're gonna have to promote/market your ebook yourself.
If you're fine with that, go with e-junkie. Payment processing, etc.Is pretty smooth.
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.