Probably the most successful of all the programs/organisations I have found so far. I thought after putting permanent on the top I should probably put this one up even though I found it a while ago. They have a neat website, have donation options and all sorts of other ways to contribute. Check it out it is worth a look.
The more of these projects I find the more hopeful I get. It means there must be a lot of us out there. So keep up the good work people!