The document provides an extensive overview of on-site SEO strategies discussed at the Web 2.0 Expo NYC 2010, emphasizing the importance of proper URL structures, content hierarchy, and optimization techniques for websites. It covers essential aspects such as creating XML sitemaps, controlling what search engines crawl and index using robots.txt, and enhancing user experience through efficient internal linking and page load optimization. Additionally, it includes resources and tips for improving various components of websites, including meta tags, images, and e-commerce content.