I have been trying to increase my knowledge in the area of philosophy and at this point I have been doing it primarily through podcasts. Right now I am listening to a course on the philosophy of mind by John R. Searle. Searle is not a Christian and does not teach from a Christian perspective (although he does speak highly of Alvin Plantinga). He also uses some rough language. However, he teaches with an energetic and humorous style that can keep one’s attention. If you are interested in this area of philosophy, I would recommend this audio course.