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.
Blogging is all about sharing; no matters if the blog post is written by you or not. Keep spreading the good vibes for your readers.
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.