If you are looking for article to get started on WCF on .Net 3.0, Microsoft has a decent e-learning course
Clinic 5137: Introduction to Developing with Windows® Communication Foundation and Visual Studio® 2005. I wouldn't say it's one of the best ways to get started on WCF, but if you have been looking for something on WCF to get started, this might be a good place to start with.
I tried to read blogs related to WCF, listen to podcasts, etc.. but personally I have been waiting for the book by Juwal Lowy on Programming WCF. He is the guy who can explain you WCF inside and out. Make sure you pre-order yours with Amazon.