SEO
SEO (or Site Engine Optimization) is often misunderstood. Proper SEO does not make your site "visible" to search engines. It is their job to find your web content (pictures, site text, multimedia, ect.), and they are very good at what they do. To the extent that if you have posted any content, anywhere on the internet within the last two weeks it has certainly been found, catalogued, and ranked for future searches.
That being said, proper SEO techniques, which are ever changing, will not make a low ranking site "visible". Rather, they will give search engines what they want, by adjusting your site to conform to recent search engine protocols, by adding an abundance of new keyworded text, and by assuring proper search engine submission for every page on your site.