Relevant

Search engines are companies that use software that index as many web pages on the Internet as possible and store them in a database.

When you use a search engine like Google, Yahoo, Ask or MSN, you are searching a database that contains text fetched from the web pages themselves.

Before submitting your web site to any search engine, it's important to make sure that a variety of factors are checked. I use a search engine submission checklist to assure that search engines will index your web site.