Today at TechEd we unveiled our new community site for .Net 3.0 (including WCF/Indigo, WPF/Avalon, CardSpace/Infocard, and Workflow) at: http://www.netfx3.com.
For WCF-centric items, update your favorites from http://windowscommunication.net to http://wcf.netfx3.com/ (we will of course redirect you in the interim :))