This site provides a set of well developed video Quick Tutorials with sound that demonstrate how to use various key features of Bb R9.  Some are quite short and straightforward like Creating a Discussion Board Forum, while Managing Blogs provides a longer and more in-depth overview of the new blog capability.

Even though the resources available at this link are neither Bb created nor Bb endorsed and I have not had an opportunity to review all of them, the ones I have had a chance to review lead me to believe that they could support your training efforts.

Since these are non-Bb created resources, the links and the resources provided at them could be removed at any time by the individuals who created them.