I Liked Socialism Once

Praxeology - Episode 7 - Scale of Values

Praxeology - Episode 6 - Ends and Means

Praxeology - Episode 5 - The Rationality of Action

Possibly the most important lesson so far:

Praxeology - Episode 3 - Purposeful Action

If you choose not to act, you still have made an action (/Hat Tip to Neil Peart).

Praxeology - Episode 2 - Methodology

Praxeology - Episode 1 - Introduction

Praxgirl makes Praxeology fun!