The Visual Studio team has sponsored a set of Visual Studio Extensibility walkthroughs that will be hosted on www.devx.com.  The first walkthrough showed how to write a blogging extension for VS 2010 and demonstrated the basics of VSPackages, Commands, Tool Windows, and MEF.  In this walkthrough, Steve Apiki shows you how to extend the Visual Studio 2010 editor to support your custom language.  He walks you through how to add Syntax Highlighting, Error Tags, Quick Info tool-tips and Statement Completion using the new MEF (Managed Extensibility Framework) extensibility points in the Visual Studio 2010 Editor.

Check it out and let us know what you think!  Also, if you have ideas for other articles you would like to see, please leave a comment.