This document discusses the importance and power of user-generated content (UGC) for marketing. It notes that word of mouth has always driven marketing and that UGC is more influential than other media. UGC affects purchase decisions, especially for millennials, and is trusted more than branded content. UGC drives more engagement than branded content. The document provides examples of how brands can leverage UGC for insights, promotion, and activation by curating UGC, recognizing UGC creators, and involving consumers in content creation.