I don't mean to be rude or act like a moderater here, but could we get a bit back on topic? I believe the OP was originally asking for non-fictional sources. There are plenty of fictional wolf book threads (I think there are like 4 on the front page alone) where they can be posted.
Like I said, mean no offense, but I'd like to know more about non-fictional stuff here.
Back on topic: I remember seeing a documentary about this man who did have captured wolves (I'm not sure why) in a large encloser. There was the alpha pair who had their pups, and for some reason the daughter took over, becoming the new alpha female with her father, while the mother I think died. The daughter died later on along with some other wolves in the pack due to a disease that he tried to help them with (he put the medicine in the meat) but they refused to eat it, so they died. Would anyone know the name of the documentary? I think it was on Discovery channel at one point. I do apologize if my description is too vague. I've just been wanting to see this documentary again, even though it involved captured wolves. There -was- a reason why they couldn't go out into the wild, I just forget. That, and it seemed the show was done like in the early 00's, but the actual filming took place earlier.
Woo. Sorry for that big block of text! If no one can read it, I'll try to fix it.
It's my most fav book ever! Also I've seen most of the documentaries everyone's mentioned...not to mention the Balto trilogy. And there is a movie about wolves that is still being made..don't get too excited because you'll have to wait a few years before it's even close to being released. 
Here's the site if you want to know more.
