Feminism

National Organization for Women: http://www.now.org
Women on Waves: http://www.womenonwaves.org
Ms. magazine: http://www.msmagazine.com
Girls' Global Education Fund: http://www.ggef.org/welcome.html
Forward USA, Leading the fight against FGM (Female Genital Mutilation): http://www.forwardusa.org

Liberalism

American Civil Liberties Union: http://www.aclu.org
Northern Sun: http://www.northernsun.com
Working Assets Long Distance: http://www.workingassets.com
Working Assets' Shop for Change: http://www.shopforchange.com
Greater Good: http://www.greatergood.com
I Give: http://www.igive.com
Message Checks, a check printing company that uses recycled paper and supports progressive causes: http://www.messageproducts.com
The Rainbow Card, a credit card that supports gay rights: http://www.rainbowcard.com