PICS is a pair of Protocols, allowing labels to be applied to WWW content. These Protocols empower any individual or organization to design and distribute labels reflecting their views about the content. PICS was pioneered by W3C as a practical alternative to global governmental censorship of the Internet. In addition, the same technology facilitates searching the WWW and provides a foundation for establishing trust in information on the WWW. PICS labels are rather limited in their expressiveness. A new version of PICS will be based on RDF, facilitating
With the growth of the web, the amount and the nature of information available on the web encompasses many different cultures and lifestyles. One frequent requirement from web users has been to be able to select resources based on content. One approach to this problem is the Platform for Internet Content Selection (PICS) as described by Resnick and Miller []. The basic idea is to create a platform for the definition of labels attached to resources.
Each label describes a rating of a resource based on a particular rating service. It is important to
Completed Specifications for PICS-1.1
These are official W3C recommendations. They are stable. The normative specifications are in English. Translations of some of these are available.
1. Service descriptions: Specifies the format for describing a rating service's vocabulary and scales; analogous to a database schema.
2. Label format and distribution: Specifies the format of labels and methods for distributing both self-labels and third-party labels.
3. PICSRules: Specifies an interchange format for filtering preferences, so that preferences can
Technology Inventory [broken link as of July 2005]. Lorrie Cranor and Paul Resnick. This inventory was first distributed at the December 1997 Internet On-line summit: Focus on Children. The on-line version was updated until the summer of 1999. It also lists some products and services that are not PICS-compatible.
The following resource lists are being maintained by members of the PICS developers' community. Contact the maintainer of each individual list with additional links. The maintainers have all agreed to be fast and fair in maintaining these