Here is a couple of comments and some other suggestions.

First I would like to take a broader view, specifically by looking at sharing in the offline world, and especially thinking about the way in which the propogation or transmission of knowledge and skill occurs. I think the list we have so far reflects the degree to which our subjective concept of sharing is influenced by our online experience. How about collective baby-sitting arrangements in state housing projects? I give it as an example just so as to kick off a different trajectory for reflection which could help us to see things whose significance we may overlook.

Secondly, beyond grey areas of legality, I think the warez scene which has no pretensions towards legitimacy (!) should be represented and discussed. If an infocalyptic meltdown should occur around the ears of p2p users, they will find themselves in a position analogous to the one which has confronted warez scenes for years. the interesting thing is that warez persists. The other interesting thing is that warez is a truely miuxed economy, relying both upon sharing, non-rothodox trust networks and, on the other hand, money through its interface with the black market economy.

Thirdly, the spec as initially mailed to me sounded rather like a summary of the first part of the book our research group at the ILI are working on.... and I would have some other suggestions if that was the route it was decided to pursue. As is I'm thinking more in terms of S.O.S or DFCAKASSTHPAH (Days of Free Culture and Knowledge and the Subjugation of Science to Human Pleasure and Health!)