First podcasts post is here
The world in words (website, iTunes)
The world in words explores global culture through the lens of the many different ways languages are used, created and adapted. You don't have to be a linguistics nerd to enjoy this program, anyone with an interest in international culture will likely find this fascinating.
Christian Audio First Chapters (website, iTunes)
This podcast features the first chapter of new and popular Christian books. It is a great way to decide if a book is one you'd be interested in before you buy it. At the Christian Audio website they also have a different free full lengnth Christian audio book every month. This month's free audio book is Crazy Love by Francis Chan.
Mars Hill Church (website, iTunes)
The Mars Hill Church podcast features sermons from popular author and preacher Mark Driscoll of Mars Hill Church in Seattle. I particularly recommend the Doctrine series which goes through the major themes of the bible and The Rebels Guide To Joy series which covers Phillipians.
The Boundless Show (website, iTunes)
The Boundless show is an Christian podcast focused at college students and young adults. It covers a wide variety of topics and is quite entertaining.