Create infographics for your blog to summarise the content and present it in a more interesting way.
Grammar - Depending on the language you use, blogging just makes it imperative that you are reasonably good with your grammar skills and proficiency if not a master. Remember your audience is a mix of both; the ones who are experts and the ones who are not.
Make your posts visually appealing. It really helps in grasping the attention of the reader and adds value to the post.