Matt Cutts at the 2009 WordCamp. In this video he discusses terms like google juice, page rank, and back links, but don’t get overwhelmed by the jargon. The central theme is creating content that is relevant and reputable. Worth watching!
There are so many nuggets in this. You can skip the first 5 minutes and 30 seconds, but from there to around 19 minutes in, it’s great general information to help you understand ranking and content. After 19 minutes, it briefly goes more into WordPress related issues, but then he returns to creating relevant content. It’s all good.