Some more tips are:
1. Place Your Keywords In the Title Tag
2. Optimize Your Robots.txt
3. Proper Use of the ALT Attribute
4. Anchor Text of Links
5. Quality of Inbound and Outbound Links
6. Proper Use of Header Tags
Your first paragraph is the most important paragraph in your page. This is because it's the first paragraph search engines scan and they assume that it's somewhat of a summary of the page/article.
8. Ensure Your Site is Accessible
9. Use
SEO Friendly URLs: it should be descriptive.