Deafness and the User Experience
http://www.alistapart.com/articles/deafnessandtheuserexperience

Herrod, Lisa
List Apart, A
2008

Abstract:

Because of limited awareness around Deafness and accessibility in the web community, it seems plausible to many of us that good captioning will fix it all. It won’t. Before we can enhance the user experience for all deaf people, we must understand that the needs of deaf, hard of hearing, and big-D Deaf users are often very different.