MSDN2′s Hackable URLs + MSN Toolbar

This is just too cool:

You can also use a $w to indicate a parameter.  For example:

@msdn2, http://msdn2.microsoft.com/library/\$w

…and then you can type msdn2 System.String – for the easiest way to lookup classes in the MSDN2 library.

[Simon Guest – Off Topic: MSN Toolbar Suite]