I was interested in what I could find on Scribd to do with Revit – turns out there are some resources available. Have a look at some of the search results here:
autodesk revit architecture essentials search

Please note that I am not responsible for the legality or copyright of the content that others have made publicly available on the internet.

Here are some direct links:

http://www.scribd.com/doc/22419267/Learning-Autodesk-Revit-Architecture-2010-Volume-1

http://www.scribd.com/doc/20307652/Learning-Autodesk-Revit-Architecture-2010-Volume-2

Resource page at Sybex (CD resources)