"Globalization and the Rise of Religion"
[http://speakingoffaith.org/programs/globalization/index.shtml]
This Speaking of Faith program features sociologist Peter Berger, who discusses the increasing influence of the Protestant church, especially in its Pentecostal forms, in Africa and Latin America.

The Story of Africa
[http://www.bbc.co.uk/worldservice/africa/features/storyofafrica/]
A BBC special that lays out the history of Africa and the role religion has played in it development. The audio component contained within each section is quite lovely.

Zimbabwe's Churches
[http://news.scotsman.com/topics.cfm?tid=155&id=678852004]