Glenn,
Perhaps you would not have framed it this way, but what you describe is that you have tapped into your PLN. This is a perfect example of how social media can be leveraged as a resource. Informal learning, getting information through non-traditional sources when we need it, has grown in importance and you provide a perfect example of how social media has enabled us to learn from each other in more ways than ever. I hope after reviewing the entire course, you realize how you may be able to leverage Twitter to help you grow your PLN, and consequently, the people from which you can "tap" into for knowledge-sharing. Do you think your students could benefit from learning how to grow and tap into their own PLNs? Have you had this discussion yet with your students regarding how to use social media to do so strategically? What programs does your school offer?
Robert Starks Jr.