Sheryl,
I am happy to hear you may incorporate video chat into your curriculum. I find students are very inspired by talking with graduates who are now successful in their field. Some of the websites mentioned in the sharing learning materials portion of this class are also great resources when seeking out guest speakers. Publishers such as Pearson and Cengage are also helpful when seeking out speakers. I have found they have a great network of professionals who are willing to present to both small and large groups.
Wishing you continued success in the classroom.
Theresa Schmitt