Science, the environment, human behavior and biology, design, technology and bold ideas -- if any of that interests you, you should check out something called TedTalks.
TedTalks (an acronym for Technology, Entertainment, Design) essentially are extraordinary people presenting extraordinary ideas. They come at an annual conference where these fascinating people gather to give brief presentations.
Fortunately for the rest of us, the most interesting ones are captured in audio and video and available at Ted.com or for download as podcasts. I highly recommend you check them out. There are more than 300 available, and many are sure to catch some of your interests.
Click here to go to the TedTalks video podcast page in iTunes.