Abstract: System and methods for controlling access to internet content, comprising: a web-server; a client computer comprising a web-browser, communicating with the web-server over the internet; means for adding at least one characteristic of the client computer user to a web-page request sent from the client computer to the web-server; means for identifying the at least one characteristic of the client computer user; and means for selectively responding to the web page request, based on said at least one characteristic.

Abstract: A hierarchical communication system and method, comprising a network; end-users of the network, at least part of said end-users requiring supervision; guardians providing supervision to said end-users requiring supervision; and means, connected with said network, for authorizing communication between two or more end-users requiring supervision or between an end-user requiring supervision and an end-user not requiring supervision.