Al Mohler, President of Southern Seminary, and one of the most astute observers of American culture, has two new free podcasts. The first is called "The Briefing," a fifteen minute summary of each day's major new stories presented through the lens of a Christian worldview. You can get it podcasted free to your computer each day. I listen to it on my drive into work each morning.
The second program is more periodic. Titled "Thinking in Public" it is a weekly extended discussion of a topic of interest. It also is available free by podcast to your computer at regular intervals. To find out more go to Albert Mohler.com.