This document discusses the use of user generated content (UGC) in social media marketing. It provides three case studies of companies that successfully used UGC: iClothing engaged loyal customers to generate photos with the #iWear hashtag, increasing engagement and revenue; 53 Degrees North created content on a small budget with the #53DegreesNorthChallenge; and Tesco Ireland built trust with the #socialboosts campaign to improve sentiment towards the brand. The document emphasizes that authentic UGC generates more engagement than professional content and that paid promotion is needed to kickstart UGC campaigns.