Negative effects of Facebook and other Social Media sites

Do you know there are many side effects of Facebook and other Social Network sites. Yes, negative side of Social Networking sites.
Nowadays, many social networking sites like Facebook, Instagram, Twitter, TikTok, Youtube and many more are trying to be on the first of the list by giving the facilities to their customers to chat with their friends, share their photos, and so on. They bring relation closer but actually it create big gaps among our relatives or family as their children or family member who are using Facebook is always siting on the front of their PCs (just like a parasites which always lives on the body either its inside or outside)and sacrifice their family just for this nonsense social networking site as they not give time to their friend and family for their self enjoyments.
Olympics 2012 will be remembered as many reason-- First one is of its opening Ceremony of Olympics 2012 that was tremendous. And second one is USA's and China's medal (as they have shown fantastic performance in Olympics and brought many medal to their homelands ) highly buzzing of Olympics 2012 either it is on internet,social networking sites or in the lips of friends or relatives. As far as Facebook consulted, Olympics 2012 may also be remembered as SOCIAL OLYMPICS as Olympics player's page has received so many likes, comments, posts on their page.