Getting your site to show up on the search engines and rank highly in the search results is often referred to as Search Engine Optimization or SEO. SEO is an important part of building and maintaining a website.
Here are tutorials that you may want to check out:
Meta tags: How to add them to your site?
My site does not show up in the search engines, what do I do?
My website was coming up on the first page. Now it's not!
How can I add a title, description and keywords tags?
How do I verify my site with Google Webmaster?
I'm trying to verify my site with Google Webmaster and it's not working, why?
How do I verify my site on Yahoo and Bing?
Where do I find my sitemap?