A very well-done site by my field herper friend Ross Padilla that features many wild types of Cal. kings representing their very specific locales. It also features a huge array of other selectively-bred mutations and combinations produced by him and other friends of ours. This is one top-notch California kingsnake site!
This is my good friend Jimmy Tintle's site. He specializes in different tricolored kingsnakes and several milksnake subspecies. His forte is that most of his animals can be traced back to known origins. Many of them being locale-specific.