I support an individual's, or an organization's, giving as much (or as little) of its own money to relief efforts in Oklahoma. Good people believe in and practice charity, and history shows that Americans are a very generous people.
It's impossible to be "generous" with other people's money, though. I don't support the massive amounts of federal money that make up so much aid after such disasters, and if you would like to know why, read this post. In it I relate a story about Davy Crockett (who as a Congressman voted for $20,000 for relief for Georgetown after a fire) and one about Grover Cleveland (who vetoed a bill providing drought and famine relief to Texas--because there was no authority to do so in the Constitution!).
You can donate to the American Red Cross here.