The American Red Cross
You can donate online to their disaster relief fund here.
You can text REDCROSS to 90999 to donate $10 which will be charged to your cell phone plan.
They can always use blood too. If you are near Oklahoma Citty your blood will probably help disaster folks.
The Salvation Army
You can donate online here to help them help those in need.
You can donate $10 billed to your cell phne by texting STORM to 80888.
You can donate by phone by calling 1-800-SAL-ARMY
The Episcopal Relief and Development
This group is collecting donations to help the Tornado victims in Fort Worth, Texas and Oklahoma and you can donate here.
Catholic Charities USA
Catholic Charities are helping the victims and you can support them here.
Those are some big organizations helping. Four I trust as well, having supported them or helped them in the past. I know there are several more organizations helping as well. If you want to share some of the other organizations you trust feel free to comment. Let's help these folks out. We can't bring back the dead or make up for the loss of losing love ones. However, we can help people get back on their feet.