Uh, me? It's Japan, they don't need money. This isn't some 3rd world country that will never recover from such a thing... it's Japan. More specifically, just part of Japan. I'm not trying to downplay it, because it is a tragedy and too many lives were lost, but money won't bring those people pack nor will it really help them rebuild. What's needed is time and patience.
How about, I chose to buy a new Nissan vs. Ford a couple weeks ago and that's how I helped. No? How about the PS3 I bought. Japan has a lot of our money coming in on a constant basis already... is $5 going to make much difference in your Japan cash flow? It may sound selfish but I truly believe my money would be better spent in this country then donated directly. Whatever organization you use will take some of that money for their backend services (non-profit just means break even, it doesn't mean they take nothing). By buying Japanese based products here you're putting money back into the Japanese economy and also helping our own.