According to this article from the National Law Journal, the University of Chicago Law School has banned Internet usage in classrooms. The Law School Dean is quoted as saying that he has been trying to persuade students to stop using the Internet in class for some time, but he just learned that the building had the ability to block wired and wireless access from certain classrooms. So, he shut them down.
There are obviously positives and negatives on both sides of the argument, but aren't these people adults. But, maybe it was a distraction to the professors, who knows?
What do the readers think about computers/internet in class??