I dont think you could read books for free online as that is illegal but you should find some good opinions on animal testing on blogs or the library.\nBlogs are like online journals\nhttp://www.animalwritings.com/2005/12/humane-face-of-animal-rights.asp\nIt is an good blog and has tonnes of links on the side\nand i did a blog search or animal right for you to check out the results\nhttp://search.blogger.com/?ui=blg&q=animal+rights