Facebook is a free social networking site which was initially set up many years ago for college students to find out info about and communicate with fellow students.
The site then expanded to the general public allowing people like you and I to find long lost friends and family and to allow us all to keep up to date with what each other is doing through the use of messages, photos and other forms of on-line communication.
Facebook has really taken off over the past few years and we are now finding a very large demographic of generation X and Y consumers using Facebook at least once a day.
In fact in 2009, Facebook officially took over from Google as the most used website in the world (meaning that more people are using Facebook on a daily basis than people using Google).