But the federal government is warning the public that millions more could be lost to scammers.
This week, the Internal Revenue Service and the FBI released notices warning the public about fake charities asking for money in the name of hurricane sandy.
A CNN investigation revealed that one website soliciting money for victims in Jamaica was actually set up by an American with no ties to the storm. The charity was not registered in the United States.
But even sources that seem legitimate can be flawed. Take, for example, the popular crowdsourcing site IndieGoGo.com. A quick search reveals more than 40 pages of people asking for donations in the name of Sandy. However, there is little way to very whether the money will actually go to the cause.
If you would like to donate money to the cause, the American Institute of Philanthropy has posted a list of well-rated charities here.