Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has.

-Margaret Mead

• Tribe of Heart: Opening minds and changing hearts through powerful, honest films
• Humane Myth: Challenging the notion of humane animal agriculture
• Compassion Over Killing: Working to end animal abuse since 1995
• Green Guide from National Geographic: Advising consumers on green products and practices
• Natural Resources Defense Council: "The Earth's Best Defense," protecting wildlife, habitats, and a healthy environment
• Nuclear Information & Resource Service: Researching and educating about the dangers of nuclear power and waste and supporting development of renewable energy

Humans

• Amnesty International: Protecting human rights around the world
• ONE: Fighting global poverty, hunger, and disease
• Save Darfur: Working to stop violence, rape, genocide, and starvation in the Sudan
• Veterans for Peace: Veterans working together for peace and justice through nonviolence
• Human Rights Campaign: Working for lesbian, gay, bisexual, and transgender rights
• Lambda Legal: Seeking full recognition of the civil rights of LGBT individuals and those with HIV through education, impact litigation, and public-policy work

• The Story of Stuff: Exposing the unseen costs of humans' production and consumption habits--a must-see