This link gives the basics of ePals, while it also provides ideas of how ePals can be used. It provides basic ideas of emailing to collaborate, or completing simple or complex projects to collaborate - all for the purpose of enhancing student learning related to geography.
This site provides multiple ways You Tube can be helpful in the classroom - including sparking discussions, creating playlists for review at home, and adding quizzes to videos.
From connecting with classrooms in other locations to learning about each others' culture to connecting with content experts - educators are extending learning beyond classroom walls. Use this site to help you learn to use Skype effectively with your class.
Google Forms is a great tool and I hope to use it more throughout this year. Take a look here for a more detailed introduction and guide to using and creating a Google Form - this was written prior to Google bringing forms into the NEW menu.