I’ve been following the lectures on TED for a couple of years, and I highly recommend it to anyone who is interested in ideas, technology and design.
TED is an organisation that holds lectures by innovative thinkers, where you’ll often see people of notable prestige in the areas of science, health, and education. TED releases videos (almost daily) to the public, for free.
These videos; usually just 15 minutes in length, are sure to get you thinking about relevant issues and interesting new solutions.
Visit their website and open your world: http://www.ted.com/