Since they are "headings" the search engines figure that they are very closely related to the content of the page that they appear on. Be sure to have one Head tag on each page. Headings are defined with the <h1> to <h6> tags. <h1> defines the largest heading. <h6> defines the smallest heading.

Head Tag <h1>


Head Tag <h2>


Head Tag <h3>


Head Tag <h4>


Head Tag <h5>


Head Tag <h6>
These tags should contain your specific keywords along with any other descriptive text relevant to the content of the page. Search engines regard Head tags as valuable pointers to what a web page is all about. The Google ranking algorithm dictates that if you're using a <h1> tag, then the text in between this tag must be more important than the content on the rest of the page. So try to include your most important keyword phrases in heading tags on your page if you can.

By default, H1 tags aren't the prettiest in terms of formatting, so using a CSS style to override the default look is usually a good idea:

<style type="text/css">
<!--
H1 { color: blue; font-family: Verdana; font-size: 16px }
-->
</style>