Your Guide to Social Signals for SEO

A brief history of social signals as a ranking factor

Almost two years ago, in December 2010, Danny Sullivan wrote an insightful piece on social signals and their influence on search engine rankings. The article explored the possibility of social signals affecting rankings, but was early for its time; scalable link

---------------------------------------------------------------------------------------------
To read the full article: http://feedproxy.google.com/~r/seomoz/~3/tVqZTvG5l3w/your-guide-to-social-signals-for-seo