dy 
        when used individually, becomes a rich four hours of discussion and shared 
        "war stories" in a small group implementation. </p>
      <p>As for Direct Broadcast Satellite, the trick there is to make it truly 
        interactive and problem-based with a mass audience. From the technology 
        side we attack that by adding response keypads for every participant. 
        And in our best designs, like Managed Care College, no "teaching" at all 
        is done on the air - the f