http://blogs.msdn.com/agilemonkey/archive/2007/11/19/xaml-xamlpad-linq.aspxOne of my teammates just sent a link to LINQPad , a small application written by the authors of C# 3.0 in a Nutshell . Looks like a great tool for anyone that wants to learn LINQ or needs to execute queries on a regular basis.en-CACommunityServer 2.1 SP1 (Build: 61025.2)