Vegans

https://en.wikipedia.org/wiki/Veganism
http://www.vrg.org/nutshell/vegan.htm
https://www.vegansociety.com/
http://vegan.org/
http://vegetarian.about.com/od/glossary/g/Vegan.htm

Podcast
http://www.bbc.co.uk/programmes/p04bcdg7