On many fronts: fur, slaughter houses, meat production PETA makes the occassional valid point. However, this previous post demonstrates the absurd lengths the SEA KITTEN crowd will go to avoid the alleged abuse of animals. 

http://zipline.wordpress.com/2008/09/28/breast-milk-in-my-sauce-please-winning-over-the-men-ad-by-ad

http://www.greendaily.com/2008/09/24/peta-urges-ben-and-jerrys-to-ditch-cow-milk-for-human-breast-milk/