Doug Parsons, who answers many TheBeerHouse and other ASP.NET questions in the Wrox Forums has written for Wrox a short example Migrating to LINQ to SQL in TheBeerHouse and ASP.NET 2.0 Website Programming Problem Design Solution to help anyone who wants to get started with a LINQ to SQL upgrade for their TheBeerHouse site get going.

Here's Doug's description of the content, and there's a full table of contents for the 34 pages Wrox Blox on the page for it. We hope this gets you started with LINQ to SQL and TheBeerHouse.
"LINQ to SQL has quickly become a hot topic with the release of ASP.NET 3.5, so it makes sense that the TheBeerHouse application gets an upgraded Data Access Layer leveraging this new technology!
This Wrox Blox demonstrates various LINQ to SQL techniques to use in upgrading the “Articles” portion of TheBeerHouse application. The first step is migrating TheBeerHouse project from an ASP.NET 2.0 to an ASP.NET 3.5 application. Next, create a LINQ to SQL class (DBML) mapping file that will encapsulate the entire Data Access Layer for this project. Readers will become comfortable working with Entities (Tables), navigating Associations (Relationships), and working with stored procedures from a LINQ standpoint, throughout the implementation.

While TheBeerHouse has been ported to Visual Basic .NET, the author uses C# throughout this Wrox Blox, so readers should have at least an intermediate level of understanding with C#. "