The Green family spent a wonderful four months in Cambridge in 2010, on study leave.  One of the things I discovered was the "Unbelievable" radio program, hosted by Justin Brierley.  This program generally follows a debate format, often between a Christian and a non-Christian.  Brierley is a good host/interviewer, and usually has intriguiging and thoughtful guests.  If you spend time in your car, or if your work schedule/rhythm of your life allows it, these are great programs to listen to.  Since it is impossible to read all one might want to read, this program can be a great way to stay abreast of various issues.  The web site is: http://www.premier.org.uk/unbelievable.  Highly recommended.