I am doing bellow jobs for popular my blogs. Please check all steps and you have any suggestions then please post. Blog optimization works :
1. Post in popular blog sites
2. Circulate in social media sites
3. Micro blogging
4. Blog directory submission
That is good start. Also try participate other blogs in your niche and do not forget to give comments with links to your blog. Also participate forums in your niche and use the signature link facility.