Youtube on education

Teachers of English really need to expose the language to the students as much as they can. The use of technologies has helped to do so.
Youtube is the most important page to watch video, and the good thing is that you can even download videos from it (now I wonder if that is legal ... mmmm).
Youtube is full of pedagogical videos, courses of English, classes, and teachers teaching English. But don't be so narrow to think just like that. I remember using a video of how to use organic pesticides in plants (which is the topic my students study about), and even the video didn't have a pedegogical used related with grammar of the language, my students were trying to get the main ideas, extracting vocabulary and deducing some points. But the great thing was not just the use of the language, but the fact that they were using the language in a context they know. And in addition, they were learning more things about their own theme of study.
The use of videos on youtube is endless.
I can recommend you some channels on youtube that can be helpful for you.

http://www.youtube.com/user/BritishCouncilLE  (Learn English)

http://www.youtube.com/user/BritishCouncilTE   (Teach English)

http://www.youtube.com/user/podEnglish  (EF Language)

http://www.youtube.com/user/OUPELTGlobal  (Oxford University Press)

http://www.youtube.com/user/EnglishLessons4U

http://www.youtube.com/user/JenniferESL

http://www.youtube.com/user/HolmwoodsELT

http://www.youtube.com/watch?v=kLpwuQsNiLg  (Shaping the way we teach series, University of Oregon)