Currently, the twenty-first century, the Internet is a very powerful tool for, inter alia, communication, or science. People from every age range are able to effectively use it. However, when it comes to children it can often bring more harm than good. On the Internet there are plenty of websites that are not necessarily appropriate for small children. Various types of pornography, violence are just some of the factors on which the accident might come across our child. Unfortunately, kids online often suggests the only curiosity while excluding common sense and take on every page you see. As responsible parents should definitely check online life of our children, so they do not come into the adverse party. Recent research shows that pornography, for example, has a strong negative impact on the development of the child’s psyche and can cause significant changes in behavior. However, with a bit of an idea and the commitment of the Internet can be used for a very useful purpose, such as science, and communication with their peers. Interactive programs, and computer games allow us to grind out even learning foreign languages, which is a big plus.