TED-Ed is based on the famous TED videos.
It offers excellent educational video content and accompanying lesson plan, quizzes and the ability to flip the vid to suit your class. It’s elegant and simple to use http://ed.ted.com/
Michael Wesch gave an amazing keynote address at the NCTE / Diverse Conference in DCU on Wed last 29th June 2011 on the impact of the Internet on learning . The gist of his argument is seen in this YouTube clip. I think it certainly raises very important issues for teaching and learning.
The YouTube video which brought Professor Wesch to worldwide attention was this famous video entitled “The Machine is Us/using Us”
This is a very nice video from Teacher Tube on the need to adjust our thinking to take account of the changed learning landscape.