Facebook ( www.facebook.com) is an online social networking directory that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, share links and videos, and learn more about the people they meet. Created and launched in February 2004 by Harvard students Mark Zuckerberg, Dustin Moskovitz and Chris Hughes, the site began as a network strictly for Harvard University. Two months later, the site expanded to include other Ivy League schools. After that, the college network slowly grew and by the end of 2004, Facebook had registered more than one million users.