The document discusses analyzing existing social media products. It lists common social media sites like Facebook, Twitter, and Instagram. It describes typical features of social media like sharing information and communicating with friends. It discusses different types of social media like blogs, photo sharing, and video. The document outlines audiences for social media like professionals, photographers, and interest groups. It also discusses advertising methods and legal/ethical issues to consider like privacy, bullying, and intellectual property. The task is to research and describe the purpose, content, users, revenue sources, and legal issues for three different social networking websites.