I have a relative, who lives in Sapporo. Fortunately, the city wasn't affected by the disaster, so he's alright, but there's panic in whole Japan about radioactive contamination. I think Japan is one of the best prepared countries when it comes to earthquakes and tsunamis, but what worries everyone though is the nuclear explosions. We don't want another Chernobyl, right? I think if you want to help, the best way is sending the donation through your local Japanese Embassy, or Red Cross.