Like button clicks will post on the users wall 100% of the time; however, facebook uses an algorithm to determine the relevance of the link and that determines the probability of that post appearing on the users news feed. So in other words, not everything you post on your wall will appear on your news feed. This is new, before, everything wall post appeared on the news feed but facebook is now selling space on the news feed to commercial page wall posts so that limits the space for regular pages.
Facebook has rather extensive documentation on how to make like buttons, including a code generator.
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.