White List vs. Black List There are two basic ways to make an internet experience "Kosher." Black List: We start with the entire Internet being available. The filtering systems then filter out any sites that have objectionable material. At the lowest level of filtering, only obviously objectionable sites are "blacklisted." You then have the option of choosing from various levels of blacklisting - various levels of what you consider "objectionable." Click here to see the various, pre-set, blacklisting filtering levels. Advantage: Most of the Internet is available. If you aren't looking for objectionable material, your internet experience will be "normal." This is full internet access on which access is restricted to certain sites.  Disadvantage: There is no method of providing a 100% block rate on objectionable material that is part of the ever-changing, ever-growing Internet. Among the various types of material (text, image, sound, video) constantly growing on the internet, and the various methods of providing such material over the Internet, some type of some material does have a chance of getting though blocking methodologies. Technology moves forward rapidly, websites are created every second, people add things in different ways, etc. So in this sea of perpetual change, even under an active filter, someone could possibly gain access to something objectionable. It is simply impossible to filter every drop of the ever-growing Internet ocean. White List: We start with no Internet access. We then select only certain, specific, Kosher sites that the user can access. The specific selection and quantity of sites included in this white list depends on the audience for which this list is created. There can be white lists designed for use by children, adults, business, entertainment, Ultra-Orthodox Jews, etc. Advantage: There are no surprises. You know every site to which access is available. Any site not listed on the WhiteList is inaccessible. Disadvantage: This is not full-fledged internet access. This is access to a select group of sites from the Internet. Based on the above, we don't suggest using blacklist filtering for environments in which users will possibly seek out objectionable material, or where even the slightest chance of material slip-through is dangerous. A children's white list is ideal for environments where parents have interest in their children having access only to children-related internet sites. Alternatively, for business environments, where full access to major vendors, commerce-related images, and online commerce is necessary, we suggest blacklist filtering. As with any product in which there exists some level of danger, always be responsible.