The following techniques will help improve your search ranking.
Use Keywords, but don’t abusethem. Don’t repeat words and use only words that relate to the current page, not a standard set for every page on the site. Keep the characters in the keywords tag to 874 or less. Keyword suggestion tool, http://www.digitalpoint.com/tools/suggestion/
Include a TITLE tag (but keep to 60 characters or less)
Use a Description tag (but keep to 150 characters or less)
Tables. Tables in web pages were designed for tabular data, not layout of pages. Tables get read by screen readers from the top left cell, then right and down to the bottom right cell. So
avoid using tables for layout and “linearize” all tables.
Use an ALT attribute for every image. Alternate text is crucial for accessibility by handicapped people, but is useful for everyone.