Facebook is a social networking technology, launched in a Harvard dorm room in 2004 that now connects more than 59 million people. Originally started as an outlet to bring together college students on different campuses, Facebook became public in 2007 and is now one of the most visited Web sites in the United States.
A Facebook Profile is a short biography created by the user that may contain personal, educational and/or work information. Users invite others to be their “Friends”. When profile information is updated, it appears in the News Feeds of a user's Friends. The Mini-Feed displays the last 10 updates the user has made to their Profile. Other Facebook applications include Albums, The Wall (a personal bulletin board where others are able to post messages), Status Updating, Notes (a cross between a Post-it note and a blog, including HTML formatting, photo uploading, and the ability to tag people) and Posted Items (similar to Notes, but they format pictures and comments using information from the Web site you want to share). Albums have many of the characteristics of photo-sharing sites like Flickr. Users can post photos and then include descriptions, tag people in the photos, and allow others to comment on them. Organizing photos and being able to make the Album available via a public URL to people who are not members of Facebook is an attractive feature. Users can communicate with their Friends by commenting on photos.