Here's a Google spreadsheet List of TED Talks I've gathered on creativity, innovation, motivation and learning that every educator should watch. Each of them are entertaining and inspiring in different ways.
Feel free to add any TED Talks that you believe should be shared with teachers, administrators or anyone else interested in teaching and learning.
If you are curious about TED, you may want to start at the home page and browse through the hundreds of video presentations. TED2010 is scheduled for February 9-13.