This document discusses the rise of social media and big data. It notes that everything is now shared online, creating large amounts of data. This data, called "big data," is largely social data from platforms like Facebook, YouTube, and Weibo. The document suggests that while companies are collecting this big social data, many are not effectively analyzing and using it. To fully leverage big data, companies need to measure social media return on investment more comprehensively and connect social data with other marketing data using a data management platform. This will allow them to gain insights, personalize experiences, and drive business results from their big social data.