Though it began as a craze among the youth, people of all generations have caught the fad now. Membership can only be gained through existing members who will admit you into the circle as their friend. People can upload photos and videos through these sites and share them with their circle of friends.
Sometimes they try to initiate action on some issue. For instance, in the sensational Aarushi murder case (Noida), friends and classmates of the dead girl, Aarushi, launched a campaign on Face book against the media and the Noida police for slandering the girl’s character. The campaign also called for a Proper investigation to nab the real culprits.