Brewster and crew at The Internet Archive have just debuted a new specialty collection that contains more 25 million fully archived web pages that are also full text searchable that create, "an historical record of the devastation caused by Hurricane Katrina and the massive relief effort which followed."
Material in this archive was crawled and compiled from September 4 - October 17th. More in this announcement. A complete list of the urls crawled is available here. I'm honored that our ResourceShelf collection of Katrina resources was included in the archive. Other specialty "web collections" compiled by The Internet Archive can be found in the middle of this page. Btw, the search on the Hurricanes Katrina & Rita Web Archive is powered by Nutch.