Search Engine Optimisation. (SEO)
The important thing to note is that SEO is a mathematical equation and you need to ensure your site contains the right information to improve the final search result.
Updating and changing the content of your site on a regular basis is one part of the equation. Using good keywords within your site's content, especially on the homepage, is another part. It's also a good idea to create a site map of your site (in an xml file) and get other sites to link back to yours. All of these are important factors to attend to if you wish to improve your SEO.
There are lots of other things you can do to improve the search result of your site, too, but you need to remember that it isn’t something you can do once and then forget about; it needs to be managed and updated continually, because the content on the internet is constantly changing.
Unfortunately there are no absolute guarantees that can get you to the top of a search list, but good management using the tips above will definitely help.