This is a link to an article on Skype by Steve O'Keefe. He talks about how he tried it on his mom.

This is a blog with some Skype tutorials on it for teachers and librarians.

This is an article by a librarian of how to use Skype in school.

Downloads to use with Skype for recording conversations and other add ons.

Blog of a teacher who used Skype for guest speakers in his classroom.

Video Chat other options:
Google has a chat feature that is integrated into their email. This video shows a video on how to use it.