Content is the king - In the blogging world so diverse and big, you need to establish yourself with a distinction. the only road to it is good, original and valuable content. Be creative, different and surprise your readers once in a while.
Respond with personalised comments rather than a generic Thank You. Fostering a conversation helps build the credibility of your blog!
For Business Blogs, include product messages in your blog posts clubbed with engaging content .This increases your social shares.