I read about everywhere (i sign up random newsletter from a few Internet marketer out there) the social signal will totally effect the SEO these day.. i don't know how it is actually true or not.. maybe they just want to sell their product or ebook.
i mean, google will love site that had a lot of 'FB share' or 'FB like' or 'Tweeted' or 'Google Plus shared'..
by solely depend on link building will not help at all achieve a good ranking.. particularly for competitive keyword.. and even some of them said.. link building is now dead (only if you do not include the social signal)... if that kind situation that need to be done when target for ranking in search engine.. then it is very hard to get 'pure' and 'natural' social signal..
please give your opinion.. are you still achieve good ranking without social signal? at least for the past few month and most recently