Well not to be a total BP enabler or anything but here's a bunch of great links...

This one is a very straight forward and basic view on genetics but really a lovely site....

http://www.ballpython.ca/genetics.html

The best explanation of morphs by the people (Kevin & Kara) that breed some of the best out there (Kev's book is amazing so I've heard)....have a pencil and paper handy and have fun with the punnet squares!.....has the best glossary of terms online....

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

Lists of morphs and when they were introduced and by whom....

http://www.grazianireptiles.com/mutations.htm

Something to drool over....

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

And more stuff to drool over....

http://ballpython.com/page.php?topic=morph

And if you aren't dehydrated yet, more to drool over!.....

http://www.ralphdavisreptiles.com/ma...ven_traits.asp