The document discusses user-generated content on YouTube and how it relates to companies like Disney. It defines key terms like YouTube, copyright infringement, and public relations. It explains that user-generated content is created by users rather than companies and can include things like movie trailers, music videos, and vlogs related to Disney properties. This user-generated content helps information spread widely through the "world of mouth" phenomenon on social media. The document provides examples of really awesome user-generated videos and cites sources including a book on social media and business.