Not a big YouTube person, but I really enjoy Reptile Discovery. There isn't a ton of ball python specific videos, because that's not one of the species she keeps (although there are a couple about helping a friend's beeps after they were recovered from a house fire...), but she does quite a few general snake and reptile education videos. Viewers can even vote on which pet they want to see get fed next, and there's quite a variety to choose from- hoggies, kingsnakes, garters, some boas I think, retics, egg eating snakes, toads, fish, geckos, turtles, and even a stunted alligator she rescued.