There are 3 recognized types of AB and 2 written standards. We have the Johnson type (also known as classic or bully) that is typically thicker, bullier and more mastiff or bulldoggy
in appearance) The second is the Scott type (also known as the performance or standard type) and lastly, the hybrid type, which is a cross between the two. The confusing part is that many breeders and lines are producing different sub types within the categories...it really boils down to liking a particular look within a line and researching breeders who work with that line specifically. Feel free to contact me, and I can give you some more in depth info on the breed and lines, etc. it can be so confusing to new folks!
Yep, the WAB book is a good read. For internet info though, I highly recommend the American Bulldog Resources website at
http://www.dogresources.com/abrhome.html
There are links to hundreds of breeders, breed information, health, message boards, shows, everything.
I do know of many reputable breeders in CA. Bybee's American Bulldogs is one one the top for Southern Cali
http://www.bybeesambulls.com They are more of a hybrid breeder, but they started with standards and still have some excellent ones. Thier dogs are health tested, guaranteed and proven in many areas (ABA CH, protection, catching, etc.) There are lots of other good performance people in CA..it all depends on what you are looking for in a dog..pet, show, working, etc.
As I stated, feel free to contact me if you have any questions I can help with.[/url]