Here are a couple of good links on LINQ for starters Post author:Shawn Post published:February 4, 2009 Post category:Development 101 Samples for Linq http://msdn.microsoft.com/en-us/vcsharp/aa336746.aspx A few details on the join operator http://www.hookedonlinq.com/JoinOperator.ashx You Might Also Like Debugging and Error handling in SharePoint (or other complex ASP.NET applications) February 11, 2011 Multiple app.config files (just like web.config files) November 22, 2011 Prevent ASP.NET web.config inheritance, and inheritInChildApplications attribute November 17, 2011