The Red Cross - they are the first to get in and start helping - please see what you can do. But there are so many people that are setting up support for Japan and over at Posy Gets Cozy she put up a post linking others who are paticipating in donations/auctions.
In the Bible Nehemiah was assigned to rebuilding the wall around the city - which was a daunting task but instead of one guy building the new wall, everybody pitched in by doing only a section of the wall because of this - the wall was rebuilt in record time. The point is, sometimes a job is too big for just one person to do by themselves but together we can do wonders. Think ... if a billion people only donated a dollar to Japan - even more if you think of what your drink at Starbucks cost now *o* Again we are all connected some how - some way and besides you never know next time the person needing help is ... you.