Here's an additional idea: Many employers and organizations have programs to match charitable contributions. Check with yours. I'll be able to double donations that I make because of my employer's matching program.
Note that Amazon has Amazon.com is now providing the ability to donate through 1-Click.
As we watch the number of casualties rise, we can see that there will be no end to the need any time soon. Anything that can add to the relief is worth doing.
Stuart Celarier's list of agencies that one may consider donating through: