Facebook is one of the most popular social networking sites in the world. It is the sixth most visited website in the USA and the leading website for photos, with about 2.3 million photos uploaded a day, ahead of such public websites as Flickr (comScore’s Media Matrix).
Originally conceptualized as a website for university students in 2004, Facebook expanded its scope in recent years. to include high school students, corporate professionals, geographic communities and others. It now has over 17 million members across 47,000 regional, work-related, collegiate and high school networks.
Facebook earns profits from advertising such as banner ads and sponsored groups. It does not charge its users any membership fees.
Facebook became an open network site on September 26, 2006. It now directly competes with the likes of MySpace and other social networking sites. New members may validate their membership through a security test or via mobile phone.
