Google gets personal: Now everybody will get personalized search results based on their search habits in the past unless they opt out in a tedious process. So most people won’t opt out or even notice at all, at least at first.
1.The rich will get richer, that is the attention rich. Those sites that have a brand and/or audience already will profit from Google personal search results. The sites people already click most often will rank on top. Wikipedia will dominate even more.