Updated: Visual Studio 2010 Image Library

Make sure you check out the new Image Library that gets installed with Visual Studio 2010. It was updated and contains many great-looking icons and images that are free to be used even in commercial software.

Link: Install the Visual Studio Image Library

Source: http://blogs.msdn.com/b/visualstudio/archive/2010/03/29/tips-and-tricks-visual-studio-2010-image-library.aspx