Has social media so changed the seo landscape that social shares are most important and do other seo strategies even count?
To understand the rising importance of social media on search, let’s backtrack to two interesting developments to Search:
1) The launch of Social Search (Content that is shared within your social networks is given priority) and
2) The general inclusion of social signals in rankings (The amount of likes, shares, reddits etc. that an article receives has a direct impact on its rankings).
See on webcontentblog.com