Channel 9 has two screencast that deal with the new geography data type in SQL Server 2008.
Saving Virtual Earth Polygons to SQL Server 2008
Marc Schweigert shows you how to draw a polygon on a Virtual Earth map and save it using ASP.NET AJAX, Windows Communication Foundation (WCF), LINQ to SQL, and the new geography data type in SQL Server 2008.
Rendering Polygons from SQL Server 2008 on Virtual Earth
Marc Schweigert builds off of the concepts shown in his previous screencast and shows you how to render a polygon on a Virtual Earth map using REST, Windows Communication Foundation (WCF), LINQ to SQL, and the new geography data type in SQL Server 2008.
Enjoy the shows, and to learn more about the GeoRSS utility library, visit:
http://blogs.msdn.com/eugeniop/archive/2008/07/01/simple-georss-utility-library-released.aspx

Denis has been working with SQL Server since version 6.5. Although he worked as an ASP/JSP/ColdFusion developer before the dot com bust, he has been working exclusively as a database developer/architect since 2002. In addition to English, Denis is also fluent in Croatian and Dutch, but he can curse in many other languages and dialects (just ask the SQL optimizer) He lives in Princeton, NJ with his wife and three kids.