In her introduction, Janice Reid raises an interesting point about what happens if you focus too much on learning about the company you work for. I'll let Janet's words explain.
One thing that I've learnt recently is that there's a limit to what one's learning when working with a corporate. After a couple of years you start to capture more about the company, rather than building your own functional knowledge. You create a personal database of information which is very valuable to your work colleagues, but worthless to you once you move on. In hindsight I would recommend 'job hopping' in order to develop your personal knowledge of different environments, ways of doing things, attitudes etc, rather than a prolonged period at any one firm, even if you are frequently changing roles.
