I suppose that perhaps this article would make sense in the Science forum too, but given how much we discuss the placebo affect here regarding alt med, I prefer to post this here.
http://www.wired.com/medtech/drugs/magazine/17-09/ff_placebo_effect?currentPage=allAmong the interesting findings reported: Not only are many new drugs failing to do better than placebos in clinical trials, but some drugs which once passed that hurdle, when retested now, are having a harder time doing so.
Before some woo comes along and tries to claim this is evidence of growing spiritual awareness or "firing the grid" or Crystal Children or whatnot, it's really more about changes in the way clinical studies are being done, and with whom they are being done where, often helping to boost the placebo effect to a higher level, making mere placebos stiffer competition for would-be new drugs.
I also ran across an interesting new (for me) word: "nocebo". I've been aware of the concept before -- a sham treatment with a psychosomatic negative rather than positive effect -- but I hadn't heard this word for it before.