Whence authority?

I am listening to yet another great compilation from House Of Om and the track I am listening to has one of those wonderful fifties voices intoning complete nonsense in the studied voice of authority of the time.

I am reading that the student-run Virginia Tech Planet Backsburg has just posted about "Wishing more universities would use Twitter to notify students of important events ...including Virginia Tech..."

I am thinking how much authority relies on communication and wondering how long authority will rest with those who currently hold it if they fail to adapt and keep up with the pace of change in communication happening around them.