You can't for now. Yahoo is in process of changing the profile page, changing over to account page, and they decided to put nickname posting and picture posting on hold for now. Not sure when it will be allowed again, if ever.
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.