A magnetic shielding apparatus having a high shielding effect. A portion of the electronic conversation in an instant messaging session can be identified as being relevant to a third party, and information can be specified for routing the relevant information to that third party. A compensating system detects additional or undesirable effects applied to the actuator and generates a compensating signal to modify and compensate for such effects on the actuator. When detected by the sensor array, an image of the emitted radiation is indeed displayed as a bright spot of light on the display, thus eliciting the attention of a viewer observing a scene through the imaging unit.