Technology rapidly envolves and changes almost all the aspects of human life. However, the development is good if it serves for the benefit of humanity.Today, more than one-third of the world's population uses the Internet, and this number continues to grow. It is hard to imagine any sphere of human activity, where the Internet is not penetrated. Online is a great place! We can meet our friends, share our favourite music and image, information. The web opens the door to a vibrant, exciting world of endless opportunities to explore, communicate, and create. Compared to a face-to-face environment, it is a place where curiosity and creativity can thrive, and where young people develop a wide range of skills in a seemingly less threatening manner. The web nevertheless holds certain pitfalls for the unwary users.