Simplify SharePoint development
SharePoint APIs and libraries aren't always well-documented, or exposed in the way you need. But that doesn't have to be a problem.
With .NET Reflector you can look inside the SharePoint assemblies and understand exactly how they work.
A simple example of debugging an unexpected SharePoint error by looking inside the code.
Working around “The security validation for this page is invalid” errors, when setting the
A walkthrough of how to view local variables in SharePoint w3wp hosted assemblies