Corporatism was mentioned above, and it's an important topic, because corporatism is the only way complex modern societies are actually going to be constituted. You can't get rid of the state, you can't get rid of corporations, and you can't erect some kind of impenetrable barrier between them. It's best to acknowledge this reality and harness it to your ends by means of a strong executive (as in fascism). In fact, the only way to get anything done in modern societies is to acknowledge this reality, as idealistic liberals usually discover when they get into power. It's the libertarian ideals underlying American conservatism that make it a consistently losing proposition, because it is not willing to deal with the realities of power and wield them to its ends.