Sir: Facebook has changed the way people live today; especially in the past five years, things have changed for many people. I do not think I can name any other site that has earned as much success in such a short time. With a total user base of more than 500 million, almost three times more than our entire population, facebook has become a nation in itself! Around 30 million users update their status each day, 70 percent of college students log in many times each day. The truth speaks for itself! SYEDA SARAH Karachi