I remember when I excitedly went to the local Mill Valley Library to check out Hardy Boys books for my son. I had loved Nancy Drew and thought I might revisit her too. The books were not there. I was informed they were not "literature." Since that time, they have appeared.
Anyway, here is an interesting site if you enjoy the subject of what is controversial now, according to some.
http://www.abffe.org/bbw-booklist-detailed.htm