Al Gore has posted 2.5 hours of free Revit tutorials for beginners over at:

He provides these starter files:

 and describes how to navigate and manipulate the model starting from here.

The videos include more advanced topics as your proceed through the series, including items related to documentation (not just modelling).

According to Al, over they years they have:
“put together a strategy, from many different sources, on how to draft in Revit. Now we have created a system to teach people that strategy. Through teaching hundreds of students and many professional we understand their sticking points, where they go wrong, and what they struggle with. So for the beginner in Revit I am very happy with what we have put together and think it will be of great value.”

If you haven’t discovered the Autodesk Building Youtube channel yet, now is the time.
Or, you can view all latest posts from heaps of blogs at my Revit Professionals (Revit Blog Directory) site.
And here is a list of some of the latest videos from the channel.

Autodesk Revit: Performing Conceptual Energy Analysis – This video demonstrates how to start a conceptual energy analysis and view the results.
Time: 01:37

Autodesk Revit: Changing Energy Settings – This video demonstrates how you can modify energy settings to change zoning, glazing, and skylights before performing energy analysis on the model.
Time: 02:12

Autodesk Revit: Using Automatic Form Rationalization – This video demonstrates how intelligent energy settings are used to rationalize the mass form into mass surfaces and zones for energy analysis.
Time: 02:43

Autodesk Revit: Choosing the Project Location and Weather Station – This video describes how to specify the location and a weather station for the project, so the correct climate information will be used during energy analysis.
Time: 01:57

Autodesk Revit: Using Images in Revit – This video illustrates importing, resizing, and placing an image file for use in a Revit project.
Time: 01:28

Autodesk Revit: Sketching – This video demonstrates when sketching is required to create geometry, such as slabs and roofs, in Revit.
Time: 01:36

Autodesk Revit: Understanding Revit Server – This video presents the concept behind Revit Server, and demonstrates how to connect to Revit Server and the Revit Server Administrator.
Time: 03:22