Tim Heuer shows how to consume WCF and ASP.NET web services in Silverlight. He also describes how to use cross-domain policy files when accessing third party web services. Jesse Liberty shows how to bind Silverlight Controls to an Application's Business Logic Layer. Ronnie Saurenmann shows how to use LINQ to SQL with Silverlight, and Michael Palermo wraps up his two-part series on creating a simple video game in Silverlight 1.0.
Here is the original:
Four New Silverlight 2 Beta 1 Videos and One New Silverlight 1.0 Video