| Description: | Facebook is a social utility that helps people better understand the world around them. Facebook develops technologies that facilitate the spread of information through social networks allowing people to share information online the same way they do in the real world. Facebook is made up of many networks - individual schools, companies or regions - each of which are independent and closed off to non-affiliated users. To join Facebook, people can authenticate into a school or work network, or they can join a regional network. They can then create profiles to connect with friends, share interests, join groups, send messages, write notes and post photos. |