How Do Religions Spread?

The most interesting post you'll read today - well, at least if you happen to be interested in the spread of Christianity, the impact of state sponsorship and the consequences of a "free market" in religion, and the crucial question of whatever happened to Babylonian paganism? - is right here, courtesy of Razib.
 

This article available online at:

http://www.theatlantic.com/personal/archive/2008/08/how-do-religions-spread/55494/