Check out this cool team blog for connected systems. Among other useful bits of info, the team is sponsoring a WCF screencast series. This is kind of like the popular ASP.NET 'How Do I?' 15-minute-or-less screencast series, in that it's quick, useful and straight-to-the-point. In the first installment, Aaron Skonnard, from Pluralsight, takes you through the steps to create and test a basic WCF service from scratch.
The .NET Endpoint : Screencast - Creating your First WCF Service