Marxism of the Right
The American Conservative
article is a remarkably good inditement of libertarianism that will
appeal to liberals and progressives as well as conservatives.
The appeal lies, I think, in a big-picture view of the REAL classical liberal issues that are addressed both by modern conservatives and liberals. REAL classical liberals balanced their interests in liberty with other, competing values such as order and justice. There's a nice discussion of this at
Liberals and Libertarians #1