SEO Book has a great provided a great summary of how web publication and monetization strategies have been shaped by the intended and unintended consequences of Google’s algorithm changes. While the timeline is a little confusing, the milestones are an excellent summary of how the web has evolved since 1999.
It is not clear if Google is deliberately picking the winners and losers as they react to the world they have wrought or why Richard Rosenblatt seems to come out the winner each time the relevancy team decides what is Truth and who suffers the consequences. As always, Aaron is thoughtful, provocative and one of the few visionaries who can see the opportunities provided by each iteration of Google “truth”.