There's also something called Libertarian Socialism (http://en.wikipedia.org/wiki/Libertarian_socialism http://en.wikipedia.org/wiki/Libertarian_socialism). As

There's also something called Libertarian Socialism (http://en.wikipedia.org/wiki/Libertarian_socialism http://en.wikipedia.org/wiki/Libertarian_socialism). As a concept, it defies the strict ordering of the left-right spectrum. Libertarianism is probably best not defined as a noun but as an adjective.