* Your keywords content should not exceed than 150 characters.
* Your meta description should not exceed than180 characters, description should contain all main keywords and well written and quite descriptive.
* Manage your main keywords in your text try to repeat your main keywords in all heading tags.
* Do link your internal webpage, but all linked pages should on same topic and link word should be managed as keyword on linked page.
* Use yahoo webmaster tools for sitemap submission.
* Track your serps and keep optimizing your text with high searched volume keywords.