Hurricane Katrina: How to help

I have already posted about the need for temporary housing in the aftermath of Hurricane Katrina. There are undoubtedly going to be many who are unable to provide lodging but would like to help financially. I would recommend the following places to donate:

Presbyterian Church in America's Mission to North American Hurricane Katrina fund
American Red Cross
Operation Blessing
Salvation Army
Samaritan's Purse
Catholic Charities