TED talks: a great way to become informed about almost anything and everything.
I’m a sucker for Public Radio:
On Point: Radio at its best. Thoughtful daily discussions of pressing issues moderated by Tom Ashbrook, a truly professional interviewer.
Planet Money: Economics in a digestible form. Look especially at their coverage of the financial crisis; each 20 minute show is well worth the time.
This American Life: A huge archive of radio stories that run the gamut. Often the stories are thought-provoking examples of strong storytelling, and some are just really funny.