I've put a new paper online: "The Two-Dimensional Argument Against Materialism". An abridged version is forthcoming in the Oxford Handbook of the Philosophy of Mind (edited by Brian McLaughlin), and the whole thing is forthcoming in my book The Character of Consciousness, to be published next year by Oxford University Press. A fair amount of the material is recycled from my other papers in this vicinity in the last few years, but some of it is new. This paper is intended to be the definitive version of the two-dimensional argument, being maximally explicit about details and replying to many of the objections that have been raised in the literature in the last ten years or so. This version is a draft (I have to submit it fairly soon), and there are probably mistakes here and there. Any comments would be appreciated.