Defining Libertarianism and its components
This video will help to define Libertarian principles. Those who have a loose understanding of this political perspective will gain a reasonable understanding from Dick Clark. He delivers a well defined group of examples which help to define the perspective's or philosophical elements.
As always it should be noted, whilst this information will give you the principles of Liberal thinking, you will need to read something about the history of the Liberal or Whigs to gain an understanding how this perspective expresses itself in political terms and their position in the political system.
Introduction to Libertarianism" with Dick Clark
Big government conservatism discussed at the Cato Institute
Cato Institute scholar Mike Tanner