SharePoint 2007 and WSS 3.0 Dispose Patterns

SharePoint 2007 and WSS 3.0 Dispose Patterns
http://blogs.msdn.com/b/rogerla/archive/2008/02/12/sharepoint-2007-and-wss-3-0-dispose-patterns-by-example.aspx

Using Disposable Windows SharePoint Services Objects
http://msdn.microsoft.com/en-us/library/aa973248.aspx

SharePoint Dispose Checker Tool
http://code.msdn.microsoft.com/SPDisposeCheck