Remove all other META tags (author, date, etc.), except "description" and "keywords" unless you're sure they are absolutely necessary.

Avoid using the same Title Tag throughout your site. Try using a unique Title Tag for each web page and use keyword Phrases that holds theme relevance to that page.

Most major engines cannot read frames. If you must use frames, include important body text within a <no frames> tag.

Avoid completely Flash designs. A majority of major engines will not index flash sites. Editors may be critical of heavy or slow loading flash.

Avoid JavaScript links. Spiders cannot crawl links in Java Script.

Never use keywords that do not apply to your site's content