A couple of years back I wrote a quick article exploring the link between punk rock and the animal rights movement. Really, it is a recommendation of ten great records that were important in furthering the cause of animal rights, prefaced by an introduction on the importance of punk rock, and especially anarcho-punk, in establishing the legitimacy of animal rights as a social concern.
You can download a PDF of the article, complete with pictures, here: http://www.mediafire.com/file/gdb4p182wpqgydd/animalpunk.pdf/file