I attended the Mzinga webinar, Embracing Social Learning Across the Enterprise last week. I got some good notes, and wanted to add some visuals to illustrate the concepts, so ended up with this PowerPoint:
Due to our firewall (I think) I was not able to log in to the actual webinar, but was able to listen on the phone. They say they will be making the webinar slides available online soon, so I'll link to them when they do. I'm curious to see how much I missed.
One other thing they utilized in the webinar was participant chat during the presentation. (An example of the Applied Model: Social media surrounding the learning object) I hear it was pretty active and useful. At least I did manage to find some of the participants - and the presenter - on Twitter.