Any design pattern that will be helpful in implementing asynchronous communication using sockets?

The reactor pattern (see also the PDF by Schmidt pointed to by this wikipedia article) is the start. Much of Schmidt 's work is germane to your question, esp. Volume 2 of his monumental series.

How about using WCF asynchronous calls http://msdn.microsoft.com/en-us/library/ms734701.aspx.

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.