I am so sadden to see what has happened to the people in Japan. I can't even imagine what they are going through. Here is a list of some of the sites that you can do to help support Japan. It is all up to you. Click on the bold text to take you to the sites.
AMERICAN REDCROSS you can also text REDCROSS to 90999 to donate $10 from your phone (you'll be prompted to confirm with a second text reading YES).
SHELTERBOX boxes of food and medicine
INTERNATIONAL MARINE CORPS
CONVOY OF HOPE text message by texting TSUNAMI to 50555 (you'll also be prompted to confirm with a follow up text of YES).