1. A database factory for updating a filtering system which controls access to a wide area network (WAN) of websites/pages on a computer, the database factory comprising: an upload/download module configured to receive an identifier associated with a website/page and information associated with the identifier; an identifier processing module configured to determine whether the identifier is categorized based at least in part on the identifier and the associated information; a categorization module configured to categorize the identifier based at least in part on one of: the identifier, the website associated with the identifier, and information associated with the identifier; and a database configured to receive information relating to the categorized identifier.