With things like encyclopedias and paper forms, the balance is so clear. The same is true for meetings where you are just informing people about something, with very little interaction. Get rid of them. Just mail people the PowerPoint slides or the spreadsheet and cancel the meeting. However, electronic mail does not work so well for topics that are controversial.
Mail is very poor for that.
One of my challenges to our software people is to create a meeting-type environment via videoconferencing. But if you have a meeting with, say, five to 10 people, where nobody is in the same place, it's just not as good as having everyone together in the same room. That's an unsolved problem. I think the best case is that we'll start to see this sort of group videoconferencing in three or four years. I think we have to be very conscious about how people interact.