Big Picture Small Office is both one of the most interesting blogs I read and one of the few non-tech related ones. From the about page:

Why should you spend the time following the sometimes soap opera that is my job? Why should you care about what I have to say? First, because I actually have much to say. All the time, about everything. Nothing and noone is spared. My tortured soul reaches out and grabs at everything which becomes grist for my sordid mill.

Second, because I don’t spend my waking hours planted in a cubicle. I am in a corner office. With floor to ceiling windows and an assistant who actually makes me coffee. I am a Senior Vice President. I sit on the Executive Committee, a host of Steering Committees and even committees with no capital letters.

This person writes very well, has a good sense of humor and most importantly offers a glimpse into the way upper management works, in a very large corporation.