A computer system includes a computer, operatively connected to a network, and having at least one memory with a plurality of messages and a message agent stored therein. The message agent generates a time score for each message based on how long visitors interact with the message. The message agent also generates a skip score for each message based on whether visitors skip the message. In response to a request to view one or more messages, the message agent creates a filtered set of messages by using a minimum time score and/or a maximum skip score to omit, from the requested messages, any messages having time scores and/or skip scores less or greater than the minimum time score and/or maximum skip score, respectively. The message agent then sends the filtered set of messages to the visitor for viewing. A visitor may set a minimum time score and/or maximum skip score according to preference.