Google Information
In general, webmasters can improve the rank of their sites by increasing the number of high-quality sites that link to their pages. For more information about improving your site's visibility in the Google search results, we recommend reviewing our Webmaster Guidelines at http://www.google.com/webmasters/guidelines.html. They outline core concepts for maintaining a "Google-friendly" website.
Another good free site is http://froogle.google.com/. You can create a product list to load which will link to product page on your site.
Adding posts to existing google groups or create your own new group.
