http://www.psychdog.org/lifestyle_ChoosingDog.html

this is an interesting website, aimed at those who are trying to learn their way thru the woods about choosing a dog, training them, how your entire lifestyle changes....

about how to train your dog for those sorts of things that "qualify" a dog as trained

a list of psychological/mental illnesses and disorders with suggested things a dog might be trained for

and issues of housing, flying, accommodation at businesses, our need to be our own advocates and educators...