It's a tricky question — whether or not you find something informative depends on your personal point of view and there are many different ways of expressing the same thing. Objectivity seems impossible. Yet, as communication technology became ever more important over the last century or so, objective measures became necessary and people's attempts to find them have led to some very interesting ideas. The articles below present some highlights in information theory. You can read them in sequence, but they also work stand-alone.