Facebook was founded by Mark Zuckerberg, an individual web developer looking to make friends at Harvard University. Although Facebook has been sued by ConnectU.com for allegedly copying its concept and data, Facebook is actually the first worldwide college network on the Internet. As one of the most popular college websites, Facebook is notable for its lack of prominent advertising. It quickly accumulated $50,000 in debt in 2004, and it took nearly a year for it to begin turning a profit, so clearly it needed a large amount of venture capital.
Mark Zuckerberg invented Facebook.