Azure Service Bus Relay

How to Use the Service Bus Relay Service
http://www.windowsazure.com/en-us/documentation/articles/service-bus-dotnet-how-to-use-relay/

My Hello Azure Service Bus WCF Service–Step by step guide
http://blogs.technet.com/b/meamcs/archive/2011/12/23/my-hello-azure-service-bus-wcf-service-step-by-step-guide.aspx

Fun with the Service Bus Relay (Part 1)
http://blogs.msdn.com/b/jimoneil/archive/2012/04/24/fun-with-the-service-bus-part-1.aspx

How to Use the Service Bus Relay Service
http://azure.microsoft.com/en-us/documentation/articles/service-bus-dotnet-how-to-use-relay