I just donated some money on Watsi. But I can't help but feel a bit uneasy about trusting them. After virtually ALL big Internet companies have been exposed as liars, whom can I trust?
I just hope the kid that I sent money to really exists and that he gets it.
Watsi are very transparent about their operations. From their site you can get to the google docs accounts that show where all the money is - progress with each of the different cases.
As you say, it's still built on trust but I'd imagine pg is keeping a watchful eye.