Full article here: https://moz.com/blog/the-myth-of-googles-200-ranking-factors " 9 - Facebook Likes and Facebook Shares [Ranking Factor 157/158] Google cannot see likes and Facebook shares. So they cannot be a ranking factor. Period. Matt Cutts, in the same SMX panel the list cites as its source, said: We like standards that are available on the open web. If we're not able to crawl something ? like Facebook or like the time we temporarily ran into problems with Twitter ? we don't want to depend on that data. The biggest mistake here, though, is confusing causation with correlation, and the power of Social Signals is a correlation power. As I wrote a week ago in a comment to the Marcus Tober post here on Moz, social shares are not a direct cause of good rankings, but they may help in obtaining them: Social shares > higher visibility > creation of 2nd tier backlinks (e.g. on Topsy) and improved opportunities of earning natural backlinks from people who discovered that shared content. "