Yes, certainly. Social media helps greatly in improving search engine rankings. As far as Google is concerned, all the links that come from social networking sites get substantial credit and contribute to your website SERPs. Your active engagement with your followers/readers/subscribers means a lot to make an SEO plan successful. Creating blogs is one of those activities that aid search rankings because it gives space to readers to give feedbacks and read about the updated information. The keyword rich text which you put on your blog also helps in Search Engine Optimization.