Google is constantly evolving its algorithm to better understand people's interests and provide relevant search results, which advertisers appreciate as it helps them reach a large audience. Social media integration, like share buttons and comments on articles and websites, helps spread information through word-of-mouth recommendations online in the same way people have shared information throughout history. Brands are leveraging social media for marketing by engaging with customers, building brand advocates, and employing tactics like user-generated content to humanize their brand on a large scale.