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Computers Internet Proxying and Filtering Content Filtering
Proxy server products whose main focus is filtering features that prevent unauthorized viewing of unapproved Internet content. Such products usually disallow access to material which the administrator or organization considers to be either offensive or unrelated to the task for which Web access is provided to individuals. A common use for such tools occurs in preventing children and young people from viewing websites containing violent or pornographic material. However, most filters can be used to block a variety of access based on the criteria set by the administrator.
This category is for sites discussing content filtering, and for products whose primary focus is content filtering, and that are hardware, or both hardware AND software based only.

Content filtering products that are software based should be submitted to the "Software" subcategory.

Proxy server products that provide content filtering, but are primarily focused on another area (e.g. user anonymity, caching) should be submitted to the most appropriate subcat of: Computers/Internet/Proxying_and_Filtering/Products_and_Tools/.

Internet Service Providers offering filtered Web access and server-side filtering should be submitted to a category under Computers: Internet: Commercial Services: Access Providers. Please choose the most appropriate subcategory for your site.

Advertising

Proxy like tools/methods designed to filter out advertisements such as ad banners or pop-up ads.
Proxy servers that primarily block immoral content should be submitted to Computers: Internet: Proxying and Filtering: Content Filtering: Software.

Products which remove spyware/adware should be submitted to: Computers: Security: Malicious Software: Spyware and Adware: Products and Tools.

Please include what operating systems the ad filter program works on and its licence type eg: freeware, commercial, shareware etc in your description.

Circumventing

Sites that describe how to disable or get around filters, or provide the means to do so.

PICS Ratings System

Rating systems using PICS tags to classify web page content. Several web browsers support filtering based on these tags.

Software

Applications designed to block access to specific types of Internet content. (Either at home to protect children from viewing inappropriate material, or at work to prevent employees viewing material that is not relevant to their work.)
Please only suggest sites for applications designed to block access to specific types of Internet content, to this category.

Client based applications (i.e. applications designed to work on an individual desktop or laptop computer rather than on a server) should be suggested to the Clients subcategory.

Related categories
Computers Internet Child Safety
Computers Software Internet Monitoring