Facebook is one of the largest social networking sites in the world with over 2 billion users. While it started as a personal networking site, Facebook now faces dilemmas in balancing privacy concerns with using customer data and information to generate profits through advertising. Some of Facebook's past privacy issues include the Beacon program that shared customer purchase information without consent and public profiles that disclosed user actions and updates. However, Facebook has been able to introduce business approaches through pages and applications to become a more viable and profitable business model.