I am very interested in this. I have been using the term collaboration positively until @euan said he disliked the word, so this begins to help me understand the nuances...these details alter understanding and clarify - it's the natural way of learning and being that I am interested in - although, instinctively I feel that co-operation is a cooler word than collaboration - it is more everyday...I could co-operate in a more distant way than I would collaborate...so I need to consider this definition further