This document discusses leveraging social media communities to build brand advocacy. It outlines how the social media landscape has evolved to be a primary point of contact and sales for customers. It recommends that brands build communities on social media to engage customers, gain exposure, and collect feedback. It provides examples of brands like GoPro and Adore Me that have strong brand communities. It then offers actionable strategies for brands to foster advocacy, including encouraging customer loyalty, helping brand evangelists spread the word, focusing on two-way advocacy, and letting fans fuel social media ads. The document emphasizes taking a user-generated content approach to build communities and increase marketing results.