Some of the social stats is jus examining backlinks found on the sites. Google employs 3rd party data providers for some of their traffic data, which may help them learn more about personal Facebook pages they can't index.
http://www.seomoz.org/blog/do-social-sig...
http://www.seomoz.org/blog/facebook-twit...
http://www.seomoz.org/q/what-is-a-social...
Well, social media marketing plays really very vital role in search engine ranking and bringing good traffic to your website. Moreover, these social media websites have high page ranks. So it is beneficial to use them. Hope that helps!
Social Signals are really effective. You can check social signals here https://www.fiverr.com/socialsignal365/p...
I was reading a discussion and they claim that this gig on Fiverr help rank higher in search engine results, but how do Google track these social media activities and how do these people get shares for our links with such a short time. This is the link which the other guy was referring to.
http://fiverr.com/smoviral/increase-your-ranking-with-social-signals-for-our-website-on-g-facebook-and-twitter-25-shares-each
Do you think is this works? How does search engines like Google track it?
