Social signals are one of the key factors of obtaining and maintaining good rankings. When you’re ramping up the SEO for your client’s sites and your own sites, it is inevitable that you will have to use social signals to achieve those rankings you want. By using social signals, you can boost your site’s authority and trust, and keep your SEO activities under the radar when you’re building new links. Your new links will be seen as more natural as this mimics the virality of a website getting popular and obtaining new links as a result.