Write something useful for yours reader. Share a relevant piece of information, an event update or a hack that makes a task simpler.
A new blog should not add to the existing noise in the blogosphere. Do something outstanding to get noticed.
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.