This document discusses big data and its uses. It provides examples of who uses big data including service providers, utilities, government, corporations, and academics. Big data is used to provide better consumer experiences, facilitate operations, seek new business models, manage risk and finances, and boost effectiveness. However, it also enables government surveillance. The document then discusses how Barack Obama's presidential campaign used big data in 2008 and 2012 to target voters. It also mentions concerns around privacy and how big data could enable "Big Brother" government surveillance abilities.