In particular our handler Tom Liston is tirelessly verifying hurricane related URLs to find new cyber looters. In a couple cases, we found well meaning URLs, which are indistinguishable from fake "cyber looting" sites.
If you registered a URL related to Katrina and are collecting donations, please identify which 501(c) you are associated with and provide contact information. If you are using a personal paypal account, please consider that by collecting the money and passing it on to a charity, you will lose whatever commision paypal is charging you. It may be more efficient to just link to the chartiy of your choice.
Just to illustrate the problem, here a graph showing the number of 'katrina' domains registered over the last couple days
I will be teaching next: Defending Web Applications Security Essentials - SANS San Francisco Winter 2019