A recent study at the Chicago University's Booth Business School revealed that social media is more addictive than cigarettes and alcohol. Talk about social media, and Facebook -- the largest social networking website in the world with more than a billion monthly active users to its credit, is definitely going to be the center of any discussion. With more and more people getting obsessed with the premier social networking website, terms like Facebook Addiction Disorder (FAD) and Facebook Over Dose (FOD) are fast becoming popular.