Wikipedia, I think, has something going called the Katrina Peoplefinder Project - linky
http://192.122.183.218/wiki/index.php/PeopleFinderVolunteerThey are taking all the postings they can find from various boards and such, and compiling them into a searchable database (when the server recovers from its meltdown). You go claim a chunk of data and enter it into the forms... This I can do! Pass it along, there's a lot of into to get typed in.