One of my favorite charities is Doctors Without Borders because they use so much of their donations on actual service (85.5%) to those who need them. They have a special designation for the relief efforts in Japan, so you specify where your donation will go. Having doctors assisting in Japan is essential to saving lives.
Global Giving has also set up a specific fund for relief efforts in Japan here and they are about halfway towards the goal of a million dollars to send. I also like this organization because 85% of your money will go directly to the cause you chose.
If you use iTunes (who doesn't?) you can click here and 100% of your donation will go to the Red Cross relief efforts. Speaking of the Red Cross, you can also send a donation by texting REDCROSS to 90999 to make a $10 donation to help those affected by the earthquake in Japan and tsunami throughout the Pacific.
If you use Twitter (as I do), there is a blog page (in Japanese) with the latest news and information on how to help. There are also some hashtags for specific details/information/aid:
- #Jishin: focuses around general earthquake information
- #Anpi: a hashtag for the confirmation of the safety of individuals or places
- #Hinan: Evacuation information
- #311care: a hashtag regarding medical information for the victims
- #PrayforJapan: A general hashtag for support and best wishes for victims of the crisis