Facebook is an SNS developed in 2004 by former Harvard
undergraduate student Mark Zuckerberg, which allows users
to add friends, send messages, and update personal profiles
in order to notify friends and peers about themselves. Facebook
users can also form and join virtual groups, develop applications,
host content, and learn about each others’ interests,
hobbies, and relationship statuses through users’ online profiles.
Students, in particular, are heavy users of Facebook.