Clay Shirkey gave a talk at Web 2.0 Expo in NY a while back titled "It's Not Information Overload. It's Filter Failure". He challenges the idea that we've got information overload problems, and he was mostly talking about media and the web. It applies in our healthcare lives as well. It is not so much information overload as a series of filter failures. Our systems for managing information abundance are swamped by the amount and growth of data that healthcare providers must manage.
Here's the presentation.