Pete Lacey has a great post They Can't Hear You on the gap between the corner of the blogosphere I tend to hang around in and what goes on inside most large enterprises:
the typical corporate technologist hasn’t considered REST and decided against it, they haven’t even heard the term. Ditto RelaxNG, Django, Atom, and everything else that makes the Web work and makes working with the Web easy.
Those technologies are each close to my heart, and get talked about by people on my blogroll all the time. Yet, I can confirm, a lot of really smart people in the industry haven't even heard of them. Any of them.
Well worth a read.