| acorn.org | Association of Community Organizations for Reform Now (ACORN) |
| hsus.org | Humane Society of the United States - Disaster Relief Fund |
| ga3.org | Union Community Fund |
| churchworldservice.org | Church World Service - Hurricane Katrina Response |
| louisianahelp.org | The Louisiana Disaster Recovery Foundation |
| lahg.net | Horseman's Guide of the South Central Region - Hurricane Database |
| katrinahelp.info | Katrina Help Wiki |
| katrinahealth.org | KatrinaHealth |
| disasterhelp.net | Hurricane Katrina Medical Volunteer Registry |
| bushclintonkatrinafund.org | Bush-Clinton Katrina Fund |
United States , California , Brea