19. A mobile client configured to display information, comprising: means for receiving a plurality of sets of one or more first keywords on a mobile client, each set of first keywords associated with one or more respective first messages, the means for receiving further configured to receive a set of target keywords associated with a target message; means for monitoring user interaction of the respective first messages on the mobile client; means for performing learning operations on the mobile client with the first keywords based on monitored user interaction to estimate a set of keyword interest weights; means for receiving the target message over a wireless link if the estimated set of keyword interest weights indicate a desirability of the target message; and means for displaying the target message on the mobile client based on the estimated set of keyword interest weights.
19. A mobile client configured to display information, comprising: means for receiving a plurality of sets of one or more first keywords on a mobile client, each set of first keywords associated with one or more respective first messages, the means for receiving further configured to receive a set of target keywords associated with a target message; means for monitoring user interaction of the respective first messages on the mobile client; means for performing learning operations on the mobile client with the first keywords based on monitored user interaction to estimate a set of keyword interest weights; means for receiving the target message over a wireless link if the estimated set of keyword interest weights indicate a desirability of the target message; and means for displaying the target message on the mobile client based on the estimated set of keyword interest weights. 26. The mobile client according to claim 19 , wherein one or more learning parameters used for the learning operations are incorporated into at least one received message.