MSDN2
Microsoft released a new version of MSDN dubbed MSDN2, which contains an interesting new feature.
Enter an URL in the form below to go directly to the reference page
"Tip: Our system supports URLs of the format http://msdn.microsoft.com/library/<namespace>.aspx.
For example: http://msdn.microsoft.com/library/system.xml.serialization.aspx, so navigating to API reference pages will be quicker and easier. "