EarthSave International(site info)
Founded by "Diet for a New America" author John Robbins. Promotes healthy food choices and educates, inspires, and empowers people to shift toward a plant-based diet and to take compassionate action for all life on Earth.
http://www.earthsave.org/
The Great American Meatout(site info)
The world's largest grassroots dietary education campaign. Meatout encourages people to make the transition to a wholesome, nonviolent diet of whole grains, vegetables, and fresh fruits.
http://www.meatout.org