Google is a fully automated search engine that employs robots known as "spiders" to crawl the web and find sites for inclusion in the Google index. Since this process does not involve human editors, it is NOT necessary to submit your site to Google in order to be included in our index. In fact, the vast majority of sites listed are not manually submitted for inclusion.
Google does not accept payment for inclusion (known as "paid inclusion") of sites in our index, nor for improving the rank of sites in our results. We do offer advertising opportunities adjacent to our results, which are always clearly labelled "Sponsored Links." The method by which we find pages and rank them as search results is determined by many different factors, including the PageRank technology developed by our founders, Larry Page and Sergey Brin.