Popular and scientific media have begun to cover this important issue; relevant articles are curated here.
Here you'll find a catalog of publications on the subject of value in medicine, overtesting, overtreatment, and so on. Videos, journal articles, popular press articles, etc. are all collected in a blog-style format.
Dr Otte's presentations and articles can be found in the Media/Talks section.
Go to the Blog and subscribe for updates.
Three medical journals also regularly feature pieces on the subject:
Journal of the American Medical Association (JAMA) Internal Medicine Less is More topic series
The British Medical Journal (BMJ)'s Too Much Medicine campaign
The Lancet: Right Care Series
Kaiser Health News: Treatment Overkill