Anyone that wants to hear how important storytelling is should watch this video! I found this link on AM alumni, David Martinez's blog. It is 45 minutes long but I didn't find it difficult to sit through at all. Andy Goodman made some great points about what makes narrative so powerful, what makes a good story, and how you make a lasting storytelling culture. Check it out, it's definitely worth a watch!
Storytelling Lecture- Keynote Address: Storytelling as Best Practice
He seems to have some type of online classes and workshops too.