For those who would like to contribute to the relief effort but don't trust or don't know enough about many of the relief organizations involved, I will personally vouch for the ability of Catholic Relief Services to get things done.
CRS provides relief services in over 80 countries.
It is one of the largest relief organizations in the world, and it has an incredibly low overhead to boot: the last time I checked, almost 95% of the money it received when right back out on the streets.
Their link is here: http://www.catholicrelief.org/
Their financial statement is here: http://www.catholicrelief.org/about_us/financial_statements/index.cfm