Telestra (an Australian Telco) is training its 40,000 employees on the do's and don'ts of social media.  To do so, it has created an interactive comic book. 

I really like their focus on the "Three R's" of social media: Responsibility, Respect and Representation.  Lots of companies (and employees) could learn from this.  Here's the introductory video:

(via BrandFlakes for Breakfast)