Popularization of the Internet might certainly be considered as a breakthrough. The first free and unrestrained medium was also the first place to experience total anarchy and its results. The consequences are widely-known. People of extremely different convictions got ability to present their views and no one could have controlled them. In fact, the Internet got immediately littered and now only tries of tidying it are possible. Url filtering is thought to be one of methods for selecting content. Is it efficient enough to be considered as a remedy for Internet problems? It depends. For home appliances – certainly, it is. If consider Web filtering as a tool for protecting children from typical Internet threats like easy access to pornography or violence, also as a tool for avoiding infecting a computer, anti spam may be thought as enough. However, if we think about the really efficient protection, a lot more advanced software is needed. Nevertheless, even the greatest Internet security software doesn’t guarantee 100% efficiency. Finally, some parents used to think that filtering is a great education tool. Tool to support education, never to replace it. That’s the basic difference that some people just cannot understand.