Well, since Kara from NERD is a member here that helps out a lot, the first resource that comes to my mind is ...

"The Complete Ball Python" By Kevin McCurley from NERD!

http://www.newenglandreptile.com/book.html

The book has a ton of excellent breeding information and is an awesome resource for anyone that is interested in ball pythons at any level (and I actually own a copy BTW so I can recommend it with confidence!).

Hope this helps.

-adam