Filters and Filtering. Maintained by the American Library Association's Office of Intellectual Freedom, this resource contains news, ALA policies and statements on filtering, Internet Toolkit, legal information, and more.
CIPA. Maintained by the American Library Association, this resource contains information about implementing filtering to comply with CIPA, legislative history of CIPA, and ALA's position on CIPA.
CIPA FAQ. Bob Bocher's excellent summary of everything you need to know about CIPA. Bob Bocher is a Technology Consultant at Wisconsin Dept. of Public Instruction.
libraryfiltering.org. Maintained by Lori Bowen Ayre, this website provides a matrix of filters available for libraries including contact information, pricing, and product features. Visitors can select products and features to compare side-by-side.