A friend of mine from college, Jessica Harris, has recorded a series of interviews with entrepreneurs  for NPR called "From Scratch". There are some really interesting 20-30 minute interviews available on the website with people like Richard Branson (Virgin), Julie Clark (founder of Baby Einstein), Reed Hastings (founder of Netflix) and Rich Barton (founder of Expedia and Zillow). She recorded an interview with me about my co-founding Hotwire.com which hasn't aired yet; I'll let you know when it does.

Anyway, if you're interested in entrepreneurship, I highly recommend listening to some of these interviews. I just finished listening to the Ian Schrager interview while I was going through my email and I really enjoyed it.