When you type "mysite.com" into Google what (if anything) can be learned by the order in which the results show? What is the criteria for one link to show before another? Age. pr strength, most traffic?
It would be similar to other search results. The order would be based on things like quality of backlinks and usage of that phrase in those backlinks. It would also be based on the usage of that phrase in the titles, page text, url, etc.
look up "seo quake" or "seo for firefox". quick and easy reference tools which provide a general overview of why sites rank the way they do