The document outlines the top 10 SEO lessons learned in 2010, emphasizing the influence of social sharing and local search on rankings, and the growing complexity of organic marketing. It highlights key factors like unique tweeting sources, the impact of topic modeling, and the similarities in ranking influences between Google and Bing. The findings suggest that while link spam still works, there is an emerging need for deeper understanding of SEO dynamics as mobile and content strategies evolve.
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