The most important trend to watch in 2015 is social signals which are one of the best way to get high quality backlinks for your website. Social signals are categorized as (i) Social media sites (Facebook, Twitter, Google+, Instagram, Pinterest, etc) (ii) Social bookmarks (Delicious, Stumbleupon, Redditt, Scoop.it, etc) and (iii) Content syndication (Wordpress, Blogger, Tumblr, Storify, etc).
Now a days social media sites are become more popular hence these social signals will help you to build trust and enhance your brand awareness among people.
Impact on Ranking:
When there is an increase on inbound links and citations as a result of an improved online visibility as well as brand awareness
Like & Share options in social media sites will increase your followers, due to more visitors your website's bounce rate get reduced.
How to Improve Social Signals?
Start and update social media profiles to create awareness about your product and service. Search most shared content in your topic area. Publishing unique and most popular topic will help you to attract more users.
Add social sharing buttons on your website hence people can easily share your content. Feel free to ask your most dedicated followers to share your content.
Most people are crazy about blogs. Having blog in your website is an another plus point. Because your uses can get the latest news about your product or service frequently.
See which influencers amplify social sharing and share others content also help to increase your traffic.