I am finally convinced that this is real. It is, I submit, a revolution. It is really nothing less that. The use of literature has changed in another way as well. It has facilitated interdisciplinary work.
Searches occur across disciplinary clusters about three-quarters of the time.
People are not just digging into their own field when they have a question to pursue. Kevin was able to identify the top ten articles in each field. If you ask that same question in mathematics, the answer is more than twenty years. That means that libraries and their leaders who make major decisions on the basis of either kind of data alone can make very big mistakes. If there were time we could go on and on.