Social media is proving to be one of the most crucial factors in ranking websites higher than their competitors. For example, people who are logged in from a Google account when performing searches (via Google) are shown Google Plus results from their contacts on a priority basis. This means that no matter how high ranking your website is it might not get search visibility when a person is logged into a Google account (when performing searches). This is where social media marketing and optimization come in handy.
With the help of effective social media marketing and optimization, you can get better search rankings by natural means instead of relying on Black hat SEO methods, which can get you easily penalized by Google. Effective SMM and SMO can help you get a naturally high ranking due to the popularity of your links and also help sell your product or service. SMM and SMO can also be helpful in driving traffic higher for your website, which is always good for business.