http://www.youtube.com/watch?v=yDYCf4ON ... annel_page (http://www.youtube.com/watch?v=yDYCf4ONh5M&feature=channel_page)
every video on this channel is interesting
http://www.youtube.com/user/TEDtalksDirector (http://www.youtube.com/user/TEDtalksDirector)
http://www.ted.com (http://www.ted.com) TEDTalks shares the best ideas from the TED Conference with the world, for free: trusted voices and convention-breaking mavericks, icons and geniuses, all giving the talk of their lives in 18 minutes. We post a fresh TEDTalk every weekday. TEDTalks are licensed under Creative Commons, so you're welcome to link to or embed these videos, forward them to others and share these ideas with the people you know.