Not being active on Facebook anymore, and not being a TV watcher, the news of the tsunami hitting Japan came to me a bit later than it normally would. (I know–really stupid that I could rely on Facebook so much for the spreading of world news. I was a senior in college when a tsunami hit Southeast Asia, and I remember learning about it instantly.)
Here are some links that might prove useful if you are thinking about donating some money to the relief:
How to help earthquake victims in Japan, Pacific (The Associated Press)
2011 Japanese Earthquake and Tsunami – resources summary (Google Crisis Response)
FYI: You can donate money directly to the Japanese Red Cross, access a People Finder database, and see realtime updates at this site.