A system method and apparatus are provided for use in monitoring or controlling internet access at a client device 12. A request message 500 is generated to request categorization of a specified URL, and a reply message 600 is returned denoting a category of the specified URL amongst a predetermined...http://www.google.de/patents/US8024471?utm_source=gb-gplus-sharePatent US8024471 - System, method and apparatus for use in monitoring or controlling internet access
