This here looks like a great site, if you're in the right country for it...
Charity Navigator - America's Largest Charity Evaluator

Ask Your MP to sign the Early Day Motion for Trade Justice (EDM 679). (More info)

So what can I do?

How about this? Looks like Karama Neal has been doing exactly the same thing for a year already. Her site is more US based than UK, but maybe I'd do better to just help her out with UK content.

Good stuff!

Jubilee Debt Campaign : Lobby your MP

A pretty clear list of actions UK residents can take to free the third world from the shackles of unfair debt repayments. Dont see the need? Check this out.

Why not raise awareness of the Jubilee Debt Campaign, by printing off a few of these Soduko flyers and leaving them in your workplace's tea room?

Interestingly, the World Vision US Gift Catalog lists a goat at $75. So you might do better to invest offshore. USA Gift Catalog.

World Vision UK have a whole catalog of great gift ideas. Buy a Zambian goat for £13, or a toilet for £33. Order their UK Christmas catalog now.