I'm reading a book right now called, "Design For Care" that focuses on how to build interaction between people and all the health care systems with which they interact. I had expected it to be mostly about electronic health records, but it is a much broader and far more person centered discussion than I have seen anywhere else. Well, that will have to be another post.
In the early part of the book, the author goes through the strengths and weaknesses of typical web sites that offer health information, like WebMD. Surprisingly (at least to me), he concludes that the best current site for health information for ordinary human beings in terms of ease of use and comprehensiveness is health.gov, created with our tax dollars. You should take a look-it's surprisingly useful