Here is a link to an excellent article:
50 Awesome Ways to use SKYPE in the Classroom
I have participated three times as a guest instructor in media literacy education for Dr. Stephanie Flores-Koulish at Loyola University, Baltimore via SKYPE (and my trusty MAC). It works!
This week as we have our media literacy training course here at our Pauline Center for Media Studies in Culver City, and Dr. Flores-Koulish is teaching media literacy education to her students in Baltimore, we are going to try a class-to-class exchange on media literacy. Will let you know if it happens!