http://www.timesonline.co.uk/article/0,,2-1691805,00.html http://stallman.org/harry-potter.html

http://en.wikipedia.org/wiki/Harry_Potter_and_the_Half-Blood_Prince#The_Right_to_Read

http://michaelgeist.ca/index.php?option=com_content&task=view&id=889 http://www.michaelgeist.ca/index.php?option=content&task=view&id=896