The Wall Street Journal (discussed in the ABA Journal) has an article examining whether technology makes it increasingly difficult for jurors to stay awake in court. I, for one, believe that the Internet has re-engineered our brains to a certain extent see e.g., Nicholas Carr's book the Shallows for a more thorough discussion on this topic.
One of the negative aspects of the Internet is that many now have difficulty focusing for long periods of time. Think of the last time you read for a straight hour without clicking a hyperlink, checking an email, or scrolling through Facebook. One way to overcome this shrinking attention span is to encourage jurors to be more active while in the courtroom e.g., allow them to take notes (previously mentioned by Professor Hans) and ask questions of witnesses. I also believe that jurors should be given an Ipad or similar device that contains all the evidence submitted at trial.