Facebook is a social networking site launched in 2004 that allows individuals to create profiles, connect with friends, join groups, and share photos and other content. As of 2007, Facebook had over 42 million registered users, many of whom access the site daily. The document discusses challenges of using Facebook from an educational perspective, including how to educate students on appropriate online representation and the responsibilities of educators regarding student profiles and content. It also explores ways Facebook can be engaged with for educational purposes, such as advertising events, creating online communities, and extending learning beyond the classroom.