Be clear about your goals for blogging. Maintaining a blog is laborious. And your goals will keep you motivate!
Variety is the spice of life so spice up your blog now and then.
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.