Abstract: There has been a surge of interest in the delivery of personalized information to users (e.g. personalized stocks or travel information), particularly as mobile users with limited terminal device capabilities increasingly desire updated, targeted information in real time. The use of Content-Based Multicast (CBM) where extra content filtering is performed at the interior nodes of the IP multicast tree; this will reduce network bandwidth usage and delivery delay, as well as the computation required at the sources and sinks. In this study we evaluate the situations in which CBM is advantageous. This CBM is implemented using JADE. The benefits of CBM depend critically upon how well filters are placed at interior nodes of the IP multicast tree and the costs depend upon those introduced by filters themselves. Further, we consider the benefits of allowing the filters to be mobile so as to respond to user mobility or changes in user interests and the corresponding costs of filter mobility. We consider two criteria: Minimizing total network bandwidth utilization and minimizing mean information delivery delay.