www.consumerfreedom.com - hold the mirror up to extremist groups in the US. It has a comprehensive insight to multimillion dollar animal rights lobby groups.
http://www.safefoodinc.org/ - The American beef industries response to the accusations laid down by Michael Pollan, who created FoodInc. A fantastic myths and facts page.
www.bestfoodfacts.org - Here from people who actually study food related issues and what they have to say is backed up by science.
Here is a recommended reading list
http://www.cosmosmagazine.com/node/1567/ful - an informative article written in relation to Australia on the claims of Organic advocates.