Header Tags and SEO
The bolded text above is really a header tag. Using header tags tells search engines which words are important in the context of your page.
Consider <h1>,<h2>,<h3>, etc.. as a way to highlight important keywords.
Different browsers interpret the header tags in different ways. The format for coding header tags in HTML is always the same, though: <h2>Header tags and your rankings.</h2>
There are several pre-set sizes for header tags. They range from H1 to H6, going from biggest to smallest. Use them to highlight your chosen keywords when it fits into the flow of your pages, but remember: You are writing for people, not machines.
In other parts of this web site we've used blackbeltdomain.com as an example. Check out the bolded text there and see how they use header tags to make their important keywords stand out.
Your rankings will suffer without the proper use of header tags, so don't leave them out of your search engine optimization strategy..