A book to recommend on OL, Living Company by Arie de Geus, former head of Royal Dutch/Shell's Strategic Planning Group.
Luckily you can find this book in the library, I think it is out of print, and you can only get it as a second hand now.
Many of his thoughts, I guess perhaps they had a great influence on how Shell construct its corporate image towards the society. I remember reading an article in Fortune magazines, that Shell had setup a department which in charge of corporate responsibilities, and most of the staff in that department were recruited from Green Peace. Very interesting strategy indeed.
However, in the book, Arie de Geus gave more insight on OL, not only using his experience at Shell, but of other companies based on the research that he has conducted through his years with Shell. I think his focus was more on what is the game and why is it important winning the game instead of how to play the game to some extend.