Facebook is a popular successful social website which helps people in connecting with world.
You can talk to anyone of your known any time does not matter where he is, in which part of the world he is.
If you want to say something or any message you can just do it with the help of fb and can reach to him anytime. In todays world almost every body is on facebook which makes it more successful with their agenda of connecting the world.
You can connect to anyone in the world even if you do not know them. You can send them a friend request to be your friend. Its main feature and agenda is of connecting people with their near and dears which is alsmost complete as you can talk to them anytime. You can share your thoughts, your memories, your happy moments or your sad moment