Facebook is the largest social networking site in the
world. Founded in 2004 by Mark Zuckerberg, the site
had over 500 million worldwide users as of October
2010, and has long since surpassed all of its social
networking peers. Facebook allows users to create a
profile and join various types of self-contained
networks, including college-wide, workplace, and
regional networks. The site includes a wide array of
tools that allow users to connect and interact with
other users, including messaging, groups,