If you google "maternal incubation", you'll find a lot of info.
Here's one: http://www.bobclark.com/articles/200603.html
We also have this stickied thread here on a member's experience with maternal incubation: http://ball-pythons.net/forums/showt...nal-Incubation
Not that I have any personal experience with breeding at all, but I was just recently looking into maternal incubation (for no particular reason) as well.
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