One of my favorite organizations is the Salvation Army. Based on decades of reading reports from disaster victims, I believe the Salvation Army is often among the first on the scene of a tragedy with practical, physical help for those in need.
The Salvation Army USA website posts detailed and frequent country-by-country status reports on what they are doing to help tsunami survivors.
This is on their homepage:
"The Salvation Army is providing 24 - hour aid to thousands of people affected by the horrific tsunami in South Asia that killed at least 150,000 people and devastated 11 countries. Three of the most affected countries are home to indigenous, grass-roots Salvation Army organizations year round. Those workers were some of the first to respond to this tragedy that affected so many of their fellow citizens. The international community of The Salvation Army was quick to respond as well and will continue to provide support in the community for the long-term."
There's a button to donate there, too. If you've been wanting to give - or give more - I urge you to click now and help the Salvation Army. They do a fantastic job and will use your money wisely.