Write good content
This is maybe the most important strategy of all. If your pages contain good, relevant, useful content, search engines will be more likely to rank your page higher for relevant searches. As an added benefit, good content will encourage more sites to link to your pages, thereby further increasing your search engine ranking.
Do your keyword research
Don't target a keyphrase just because it sounds right to you, or because it gets a lot of searches.
Use your keywords wisely
Once you have a good list of keyphrases, deploy them sensibly throughout your site pages.