TED (Technology, Entertainment, and Design) represents the best things about the Internet … and sometimes the world, for that matter. With the click of a button you can be inspired, educated, encouraged, wowed, or entertained by speakers from all walks of life.
See on edudemic.com
You might also be interested in a growing collection of TED Talks for Kids at College by Kids – where kids are the teachers. The unique thing about the collection is that all of TED Talks are actually delivered by kids.