The American Red Cross is assisting in disaster recovery efforts in New York City and Washington, D.C. This non-profit organization has been receiving a great deal of support, but can always use more.
Amazon.com has set up a page to donate money directly to the Red Cross, with 100% of the donations going to the Red Cross. As of Thursday night, Amazon had already collected nearly $4 million for the Red Cross. Amazon allows you to donate an amount between $1 to $100, and you may use your credit card, as with any Amazon transaction. I donated money through Amazon, and the process was very simple.
You may also donate money directly to the American Red Cross. Their web site is http://www.redcross.org, and lists phone numbers you can call to give your support.
Be aware that there have been some reports of fraudulent e-mails/spams requesting financial assistance for this disaster. It is despicable that someone would exploit this tragedy. If you would like to donate money, please donate it directly to a reputable organization like the Red Cross.