Nutshell Books in VS.NET
Oreilly gives you the ability to integrate Nutshell content directly into VS.NET. I definitely think it is a very cool idea and can't wait to get C# in a Nutshell (2nd ed) and ASP.NET in a Nutshell (2nd ed) to see how helpful it really is on a day to day bases. If you use VB.NET then they have a free download that you can snag to include the VB.NET Core Classes in a Nutshell content.
I am glad to see O'reilly constantly looking for new ways to push the medium.
- James