Click the image above to download a .NET Framework 4 and Extensions poster from Microsoft.
Want more .NET posters? Devcurry has published a collection of .NET Framework and Visual Studio posters including keyboard shortcut, namespace and type posters.
.NET and Visual Studio Poster Collection
Documentation for the next generation of the Visual Studio, the .NET Framework, and Windows Presentation Foundation (WPF) is now publicly available at MSDN.
Visual Studio 2010 Docs
.NET Framework 4 Docs