The more you're recognized for quality, relevant content, the more that content will be clicked on by users and linked to by sites seen as «reputable» in the eyes of search engine algorithms. (entrepreneur.com)
I doubt we'll see a world where 100 tweets carry the same weight as 100 high - quality links in the eyes of a search engine, but since the key to a smart link campaign DOES currently involve building both social proof and great links, it's entirely probable that SEOs of the future will be link building and socially proving their butts off in order to rank.» (pointblankseo.com)
By writing informative and interesting content that speaks to your demographic, many other sites will start linking to your blog / website as a source of information, therefore making your site more authoritative in the eyes of a search engine. (marketingindustrynews.com)