The document discusses how engagement with brands is becoming more important, especially in a cluttered advertising environment. It states that engagement is defined as "the level of involvement, interaction, intimacy, and influence an individual has with a brand over time." Premium content sites attract greater trust from audiences than portals and social networks, which has a positive effect on branding and response. Quality content on a site can lead to a stronger call to action and higher levels of trust in advertisers and brands. Metrics like brand perception, purchase intent, and awareness are positively impacted by higher levels of trust and relevance of ads.