Social Media has become a tried and tested method of promotion for your website and with every algorithm tweak and change that Google and the other search engines are doing social media is becoming more and more important. Google indexes links that come from Twitter and other social media sites (though it is still in talks with Facebook over its user content) and as links are phased out and smart semantic web associations between terms (generally referred to as co-ocurrence) become the norm these social media mentions are only going to become more important. Facebook’s latest announcement, Graph Search just made social networking even more important than ever.
Up until recently you could rely on backlinks to get your site higher in the SERP classification as any Search Agency professional would tell you. But if people do not search for your site through conventional search engines but rather stay within their social network and try to get a customised result from within their social network the whole point of Search Engine Optimisation is moot. Of course not everybody will use Facebook’s Graph feature and, indeed, not everybody has Facebook so there will still be a great market for SEO, even if links will likely keep dwindling in importance.