MMT has resurged recently in large part due to the evangelizing efforts of Warren Mosler. One of his intros to MMT for the layperson is "7 Deadly Innocent Frauds". For a counterpoint, here is a comprehensive refutation of 7DIF: http://conant.economicpolicyjournal.com/2010/10/refutation-o...
Haven't heard about Warren Mossler before, but yeah, he does seem pretty important figure in MMT circles.
But this so called refutation seems to be totally missing the point. No wonder - it's coming from Austrian. This is like asking Aristotelian about General Relativity. They're Universe apart.