1. A system comprising: a user behavior analyzer to which an end-user can couple, said user behavior analyzer being adapted to analyze the behavior of said end-user with respect to a plurality of content providers adapted to transmit first multimedia data to said end-user via a first content selector controllable by said end-user to transmit the first multimedia data from a selected one of said content providers, wherein said user behavior analyzer is adapted to transmit input controls signals to an opportunities selector, adapted (i) to receive additional input control signals from a plurality of additional content providers adapted to transmit second multimedia data to said end-user via a second content selector and (ii) to cause said second content selector to transmit to said end-user said second multimedia data from a selected one of said additional content providers; and a multimedia data combiner adapted to combine said second multimedia data with the first multimedia data into a combined multimedia data signal and to transmit said combined multimedia data signal to said end-user.
1. A system comprising: a user behavior analyzer to which an end-user can couple, said user behavior analyzer being adapted to analyze the behavior of said end-user with respect to a plurality of content providers adapted to transmit first multimedia data to said end-user via a first content selector controllable by said end-user to transmit the first multimedia data from a selected one of said content providers, wherein said user behavior analyzer is adapted to transmit input controls signals to an opportunities selector, adapted (i) to receive additional input control signals from a plurality of additional content providers adapted to transmit second multimedia data to said end-user via a second content selector and (ii) to cause said second content selector to transmit to said end-user said second multimedia data from a selected one of said additional content providers; and a multimedia data combiner adapted to combine said second multimedia data with the first multimedia data into a combined multimedia data signal and to transmit said combined multimedia data signal to said end-user. 6. The system according to claim 1 , wherein at least one of said plurality of content providers is also one of the plurality of additional content providers.