Red crescent.

via billmon.
There is also a link with various charities that will be assisting with the asian quake. For that list, click here or see links below:
Islamic Relief
Doctors without borders
Oxfam
Unicef
Kashmir International Relief Fund

Red Cross/ Red Crescent
mercycorps (eric umansky recommended this charity awhile ago for the katrina disaster relief, they provide more long term support)
savethechildren
directrelief