User-created content (UCC) refers to content made publicly available over the Internet which reflects a creative effort and is created outside of professional routines and practices. UCC has grown rapidly due to technological drivers like broadband adoption and new web technologies, as well as social and economic drivers. UCC takes many forms across different platforms and is motivated mostly by non-commercial factors like connecting with others. Emerging business models around UCC range from voluntary contributions to advertising-based models. While UCC is still in early stages, it is already disruptive and presents opportunities and challenges for traditional media, users, businesses, and policymakers regarding issues like intellectual property, privacy, and regulation.