Skype is a software application that allows users to make telephone calls over the Internet. Calls to other users of the service, and in some countries to free-of-charge numbers are free, while calls to other landlines and mobile phones can be made for a fee (about 2 cents a minute). Additional features include instant messaging, file transfer and video conferencing.
Katherine V. (Feb 24 2008). Skype sees surge in activity. Broadbandreport.com. Retrieved 24 Feb 2008 from http://www.broadbandreports.com/shownews/Skype-Sees-Surge-in-Activity-92125 .
Skype at School http://www.dummies.com/how-to/content/using-skype-at-school.html Why I Skype: http://murcha.wordpress.com/2008/12/06/using-skype-in-education/ See Me, Hear Me: Skype in the Classroom: http://www.schoollibraryjournal.com/article/CA6515247.html