The International Association of Exhibition Management
has been working to team up with the American Hotel and Lodging Association, the Destination Marketing Association International (formerly IACVB), International Association of Assembly Managers, MPI, ASAE, and PCMA to assist members who need to relocate events that were scheduled to take place in the storm affected areas, according to its Web site. There's more on this, just have to dig through my in-box's (now) 100-plus backup of things I want to post here. (Good thing I have the afternoon off! It'll take me at least that long to dig through it all.)
Update: Not sure if this is related, but PCMA has started up a Hospitality Industry Relief fund "with other industry associations" to provide disaster relief to hospitality and meetings industry employees affected by Hurricane Katrina. As of the last update, it already has collected $5,000.
Click here to make a donation.