The document discusses different types of internet filters used in schools and their limitations. It also discusses the debate around filtering in schools and libraries. The main points are:
1) There are three main types of filters used in schools - blacklists that block banned sites, whitelists that only allow approved sites, and keyword filters that block sites containing banned words. However, none can block all inappropriate content and they often overblock educational sites.
2) Filters in schools prevent students from accessing research sites and interrupt teachers' lessons when useful sites are blocked. They also give a false sense of security while tech-savvy students find ways around them.
3) The debate around filtering in libraries centers on balancing access
2. Types of filters. Black list filters These block access to "bad" sites which have been blacklisted. White list filters These are the most restrictive, allowing access only to sites on a list. Keyword/ content list blockers. These check sites for specific keywords and content, and block access if present. Very often, due to the nature of this filter, sites with acceptable content are blocked.
![The Problems with Web Filters. ,[object Object]](https://image.slidesharecdn.com/webfiltersandotherevildoers-090323184543-phpapp01/85/Web-Filters-And-Other-Evil-Doers-1-320.jpg)
