PS. I agree with Mick that Paypal is the most time-effective and cost-effective way of donating for non-Americans.

I used to think that having a Paypal account was like having an online bank account and that you had to transfer money in from a regular bank account (i.e., like the ING model) then spend it online. But that's not the case. Getting a paypal account just means registering yourself with a user ID and password, then you can use a credit card to make the payment. It only takes a few minutes, and the recipient doesn't get your credit card number.