WPF is pretty awesome and I have a decent chunk of experience going with it.  However, I never really had a need to investigate the WCF side – Microsoft’s answer to communicating between machines.

So, I am looking for a complete comprehensive tutorial that would start me out small and build me up to fully understanding this tech.  Instead, I found a tutorial that got a chat app up and running on MSDN.

Although not yet an expert, felt it was a somewhat effective learning tool.