Do you have the google toolbar installed? bingo. The toolbar can get your site indexed. I do not know how it works, but I do know that I had no links, and just registered my domain and typed the url in the toolbar and within a few days my domain was indexed. I had 1 page up, not any content other than (coming soon) and my url in the title.
This is possible that some google and other searchengines index you with any optimization ,,,,,,,,,,...
I am not sure with google, yahoo indexed my personal website despite the fact that no links were pointing to it.
Wow, I think he needs a little medication, he does not know what he's talking about. Well for the topic, you need to look for backlinks by submitting your site's info to directories, articles, forums, and classifieds