Heifer International
I've long been a fan of Heifer International and suggested it to others as a charity, but I never read the small print. Philip Greenspun and Michael Stillwell did and both noticed their marketing is fairly misleading -- you're not really buying a water buffalo or a cow, but simply contributing to a general fund that someday may result in animals getting to families. It's not entirely dishonest but it sure feels like something different than what their site describes when you give money.