In the wake of Katrina, the University of California-Berkeley Law Library has produced a web-based research guide titled "Disasters and the Law: Katrina and Beyond."
From the site's introduction: "The pages on this site contain information gathered from a variety of sources on a multitude of topics discussing the law's response to natural disasters. The navigation pane on the left displays subject headings. By clicking on a subject you will be taken to a page with links to relevant articles, responses from government and military officials, policy papers, opinion pieces, regulatory guidance, and statutory authority. By integrating knowledge and experience from fields as diverse as urban planning, bankruptcy law, and wetlands banking, the legal community may be able to provide advice and assistance to governments and individuals."