This document discusses how earned media and SEO work together to increase a website's credibility and search engine visibility. It explains that credibility comes from external links and social signals that endorse a site. Building credibility through shared and linked content is how search results have been traditionally sculpted. However, the ecosystem is shifting as search engines now use social networks to determine credibility, meaning marketers must encourage clients to engage audiences algorithmically and socially. The role of SEO is becoming more central to branding and marketing in this new environment.