Philosophical Articles on File Sharing

Here's a research-related question: is anyone aware of any substantive philosophical literature on peer-to-peer file sharing? I've taught this topic a few times in undergraduate survey courses in applied ethics using Lessig's Free Culture, but I've been surprised by the lack of philosophical material on the topic, particularly given the impact and growth of file sharing in the last ten years. There seems to be a decent body of literature on intellectual property (judging from the SEP entry), but is anyone aware of some articles that address file sharing specifically?

Comments

[Flaffer]

Do you mean where the content's copyright holder posts their work to a P2P site? Or literature posted seemingly without the copyright holder's permission?

[Flaffer]

I misunderstood the question: you mean philosophical lit ON P2P. My mistake :)

[Wally Cleaver]

You may like this book:

https://docs.google.com/open?id=0B_jnSB7WuTe5YURIX2NzUHdQanc

[Trevor Hedberg]

Thanks, Wally. I will definitely take a look at that text.