WCF web service and DynamoDB scaling/performance issue with SDK database object?

You could use a static object to persist your credentials considering that those credentials are stored in your config file and as you have mentioned they do not change. Related to the WCF REST aspect, you could really simply your life by using WebAPI the new REST "framework" from Microsoft. WCF is kind of clumsy when it comes to REST.

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.