How web crawlers work
To find out what your blogis about, search engines like Google and MSN Search use programs called Web crawlers or spiders. These programs analyze millions of Web pages including blogs, then decide which sites and pages are most relevant for various search terms.
Every search engine has its own formula for ranking Web sites which are kept secret!
Don’t get too caught up with trying to write for search engines, write for people but tag your post correctly.
Also, use links properly - search engines factor in the links from other sites to your site, including the number of links to your site which influences your popularity. They analyse the text in those links, and the quality of the sites that link to yours.
