We often get inquiries about why sites are not showing up in a Google search. The short answer is Google (and other search engines) needs to know your site exists before it can be indexed. Your site needs to be linked from other pages that google already knows about.
One way to accomplish this is to link to your website on related sites or by using web services and social media networks, like Twitter. Additionally, you can ask Google to specifically crawl a url at this page.
For a more complete picture of the indexing process, and steps you can take to improve your site’s visibility, please reference Goolge’s help page here.