Facebook is a social network within the larger world of social media that started as a site where college students could network online and share photos. Facebook's tag line is:
Giving people the power to share and make the world more open and connected.
Facebook has grown and it is now very popular with people of all ages and businesses from around the world. Facebook users can not only share what they are doing as well as share photos, they can play games, share funny stories, join groups, become fans of business or other individuals and enjoy a variety of ways to connect with one another.
Alternate Spellings: Face Book
Examples:
Facebook allows members to post photos, links, stories and videos, which are then shared with their friends. Facebook is also an increasingly important tool within the field of social media marketing for businesses.