Using social media web sites is among the most common activity of today's children and adolescents. Any web site that allows social interaction is considered a social media site, including social networking sites such as Facebook, MySpace, and Twitter; gaming sites and virtual worlds such as Club Penguin, Second Life, and the Sims; video sites such as YouTube; and blogs. Such sites offer today's youth a portal for entertainment and communication and have grown exponentially in recent years. For

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... this reason, it is important that parents become aware of the nature of social media sites, given that not all of them are healthy environments for children and adolescents. Social networks have removed all the communication and interaction barriers, and now one can communicate his perception and thoughts over a variety of topics. Students and experts are able to share and communicate with like-minded people and can ask for the input and opinion on a particular topic. Another positive impact of social networking sites is to unite people on a huge platform for the achievement of some specific objective. This is very important to bring the positive change in society.