For those who wonder exactly what a Libertarian is, Badnarik gives an excellent description here:

http://badnarik.org/libertarian.php

There's also a link to a very brief quiz that will help you figure out your own political identity, in case you aren't too sure yet:

http://www.self-gov.org/quiz.html

Really, I think most people are Libertarians at heart (since the US was founded on Libertarian principles) - they just don't know it yet. :-)