Have you ever heard of TED.com? This site has hundreds of short speeches delivered in high quality video format by the world’s most influential and respected academics, professionals and people in general.

Take a look at the following (to play the video hold the pointer over the horizontal triangle and click with the left button on your mouse).

Tipping Point author Malcolm Gladwell gets inside the food industry’s pursuit of the perfect spaghetti sauce — and makes a larger argument about the nature of choice and happiness.

Richard Dawkins urges all atheists to openly state their position — and to fight the incursion of the church into politics and science. A fiery, funny, powerful talk.

Tony Robbins discusses the “invisible forces” that motivate everyone’s actions — and high-fives Al Gore in the front row.