Mark Zuckerberg launched Facebook in 2004 as a social networking site for Harvard students called Facemash, which allowed users to compare photos of other students. While this initial site was shut down due to privacy concerns, it inspired Zuckerberg to create Facebook. Facebook quickly expanded to other colleges and universities and gained over 1 million users by 2004. It has since become one of the most popular social media platforms in the world, with features like profiles, photos, messaging, live video, e-commerce options, article sharing, and search capabilities. While Facebook connects people and can be educational, there are also privacy, addiction, bullying, and future employment concerns to its use.