There have been lively discussions this past week on the Harvard Free Culture mailing list about an interesting Creative Commons case where a woman's photo was used in an advertising campiagn without anyone getting a model release (subject "CC Licensing Issue"; see also an extensive discussion on Flickr.) and also one on whether the Harvard Coop can prevent a student from copying ISBN numbers of books for the purpose of comparing prices (multiple threads, subject "This Coop Thing").