Google Uses Social Signals In Ranking
22 February 2011, Jonathan Saipe
From the horse’s mouth…Matt Cutts elaborates on the Google algorithm in relation to Twitter and Facebook and confirms that social media signals are important to SEO.
The reputation of the author or creator is now considered to be a recognised signal, whereas back in May 2010 Matt Cutts admits that this wasn’t the case.
Matt also hints that in the same way PageRank is calculated using quality of links rather than sheer numbers, the same can apply to the authority of social links rather than their abundance.