Abstract: According to one embodiment of the present invention, in a system being capable of allowing access to desired content over a network, said system comprising: a server-computer; a source device being capable of providing a first desired content to said server-computer; a playing device being capable of receiving said first desired content from said server-computer and being capable of playing said first desired content; a director server-computer being capable of allowing said server-computer to provide said first desired content to said playing device; and an advertising server-computer being capable of receiving feedback information: from said server-computer, from said director server-computer, and from said playing device; and said advertising server-computer being capable of providing advertising information to said playing device in response to said feedback information.