Perhaps you are not familiar with the terminology... In most of the world, "libertarian" means libertarian socialism. The historically correct meaning. Some right-wingers in 1950's US appropriated the term to mean extreme capitalism. Discussed earlier:

(http://raganwald.posterous.com/hello-my-name-is-reginald-and...)

The usual claims against communism don't apply, as libertarian socialists historically opposed both communism and capitalism. (In the senses you mean.)