My MP3/4 player is a Creative Multimedia ZEN. As of this writing, their 'ZENcast' directory has 5854 entries in 5 major categories, subdivided into 28 individual categories, with the top 10 being:

Music 1006
Science and Technology 539
Comedy and Humor 531
Movies and Entertainment 420
Religion 354
Variety Shows 353
Business and Finance 338
Sports 281
Educational 244
News 244
Government 205

It is interesting to me that Religion is in the top 5. This says nothing of the number of active subscribers, but even so, it is obvious that many want to share their message with others. And these are all free downloads, some of which are videocasts, that you can play or watch on a computer, as well as your MP3 or MP4 player.

I would like to see more content available from ZENcast, iTunes, and other 'catalog' sites, or even one devoted to Christian podcasts.

One of the videocasts I watch is from Bell Shoals Baptist Church in Brandon, Florida, http://www.bellshoals.com. The music is more contemproary than I prefer, but the preaching is good; it is both devotional and evangelist, and sound theologically, typically about 40 minutes in length. He uses illustrations effectively and has catchy sermon titles, such as "Shipwrecked on Someday I'll".

Not in the directory, but available from the website, are the sermons of my Pastor, Michael N. Riley, of Killian Hill Baptist CHurch, http://www.khbc.org. His preaching is expositional and exhortational. Be prepared for one-hour sermons. Not many illustrations here, just good hermeneutics. I wish the service music was also available, as it's rare to find good music in churches these days.

Perhaps I will discuss that last topic, music, in depth in future.