Archive and many individual contributors created a comprehensive list of websites documenting the historic devastation and massive relief effort due to Hurricane Katrina. The sites were crawled between the dates of September 4 - November 8, 2005. This collection, containing more than 61 million searchable documents, will be preserved by Internet Archive with access to historians, researchers, scholars and the general public.
Querying works generally as it does in Google with some caveats. See
how querying works in the Katrina search