There are many factors which contributes to your ranking in the Google search system, all of which you can do something about.

The main culprit is relevance, all Google is interested in is that the user gets what they want. They do this by
1. Analyzing keywords typed and matching them to the website.
2. The website's popularity or 'Page Rank', which is determined by 'Backlinks'. Popularity is traffic.

Backlinks are basically links from other sites to your site, though you want a few of those to become 'known enough' for Google. You can get backlinks by leaving traces of your website URL on forum posts, Yahoo answers or even Wiki answers for instance.

In the guide "Optimize a Website for Google", we will try and make your website rank up there in the top searches pronto.