Use technology - Social plugins and SEO tools are a great thing to market your blog or a blog post. If you do not know about it, then learn it. It helps you reach out your audience in a better way and also improves the ranking of your blog.
Series of articles - Create a series of articles on your blog if the subject you choose to talk about is an extensive one.
Tags: Use of relevant tags is important from the SEO perspective. It helps the search engine track your post based on the tags you use.