Some early observations on the Google December core update
Some of these observations are based on the quality raters guidelines, the past core updates, and sound SEO advice. Please visit Search Engine Land for the full article. Source: http://feeds.searchengineland.com/~r/searchengineland/~3/3YdZfqVkz2g/some-early-observations-on-the-google-december-core-update-345064