Yesterday, with Matt Damon by our side, we told you about some great charities. Here are some more ways to give back this holiday season (and anytime):

You love: A well-fed world
Give to: Heifer International
Why: Heifer livestock and training help poor villages from Appalachia to Zambia alleviate hunger and become self-reliant

You love: Having healthy neighbors
Give to: Doctors without Borders
Why: These doctors have seen 11,000 patients since August, opened dozens of cholera treatment centers throughout Zimbabwe, and are still going

You love: Keeping it in the family
Give to: Orangutan Foundation International
Why: Our closest relatives are quickly disappearing from places like Borneo and Indonesia because of deforestation and palm oil production

You love: Feeling good about America's future
Give to: Bent on Learning
Why: The organization helps New York Public School students "focus their energies"

You love: You're not sure yet
Give to: Charity Checks
Why: You set the dollar amount, they choose the charity that needs it--and there are about a million

You hate: Your carbon footprint
Give to: Climate Care
Why: To reduce it

Further reading:
* Condé Nast Traveler's 2008 World Savers Awards
* Make a Difference: Resources for caring travelers
* Travel Question? Ask Condé Nast Traveler