The tragedy in Oklahoma demands that all of us pull together to help that community. The best way I have found to assist is through Convoy of Hope. This organization is one of the most effective disaster relief organizations in the world. I have seen them at work and cannot state how impressed I am by their effectiveness.
I would encourage my friends to go to their website and donate as generously as you can. I promise you your funds will be multiplied many times with their ability to in-kind contributions. On average these folks can turn your dollar into about six dollars.
Praying for compassionate friends for the assistance needed for Oklahoma.