CNN Help Center - a very comprehensive list.


The Charity Navigator has a comprehensive list of organizations, as well as good advice to heed when contributing to charities and other organizations.


Salvation Army


American Red Cross. Also donate through Amazon.com and Google.com.


World Vision


Newtwork for Good - Many links to various organizations.


International Fund for Animal Welfare


Many companies, in addition to making corporate donations, are also matching employee donations.


If you host with DreamHost (like me!), they are matching donations.

Be sure to also check your state and local public, private, and government agencies. Many grocery store chains are donating food and water, and many retail stores are donating clothing, blankets, and other needed goods. A multitude of fundraisers in every state in the US and many countries abroad are also underway and/or planned.