Facebook is the famous socail network, our knowledge is increases day by day and we learn about our life and meet thousands of people in every day.
Facebook is not bound network, this networks approach is till very long distance in world , we shall meet any people within few seconds.
Through Facebook we shall send write messages, voice messages, picture, videos etc in whole world.if any problem or urgent work we shall voice calls & video calls to our friends without any problems & tension.
My idea is after books Facebook is our best friend.