Long polling is not a client only solution. Long polling requires the server to hold the call until something changes. This means that you will be using up one of your concurrent connections for EVERY client logged in.
This can be a problem with some service providers that limit concurrency, so check your ISP policy before you get a 503.
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.