Although I only recently discovered Medicine 2.0, there is already the concept of Web 3.0 and Medicine. A short and useful explanation of it and of the differences between 2.0 and 3.0 is in this BMJ editorial Web 3.0 and medicine

From the same author is this article Cho A, Giustini D. Web 3.0 and health librarians: an introduction. Journal of the Canadian Health Libraries Association. 29:13-18, 2008.

Related to the former blogpost “Revenge of the experts”