Anarchy and Dualism, Revisited
Geoffrey discusses the fallacy of dualism, which I highlight in my own book Total Freedom: Toward a Dialectical Libertarianism. What is of interest to me is that even though I have viewed anarchists as creating a dualism between market and state, they themselves view the state as the source of social dualisms and conflict. One might say that they are motivated by a desire to resolve the very dualisms in social life that even nonanarchists decry. (I have argued that the anarchist resolution is not dialectical, but that's a separate issue.)
In any event, check out the relevant links above for some interesting discussion.