http://lahg.net/EMERGENCY%20PAGES/pressrelease.html 

Found this sight yesterday and have offered my assistance.  If you are called to do the same, i have posted the link here.  God Bless and my prayers are with the gulf.

There are several "official" animal rescue groups that are waiting for the okay to go into the areas.

FOr animal rescue efforts, I suggest registering with USEF

http://www.usef.org/relief/index.php

If you have a facility or pasture which you can offer to house refugee horses and ponies, victims of Hurricane Katrina, please email your name, address, phone number and email address to kcadams@usef.org , or at 859-225-6993, (please email if at all possible as we expect a heavy load of calls.) If you can volunteer veterinary services please submit your contact information. The USEF is posting a listing by state of these facilities and services for horses and ponies on our website. The list will be accessed by going to http://www.usef.org, on the right side of the homepage click on Hurricane Katrina Equine Relief. It is expected to be operational by tonight, August 31st."

At this time, it's the people that need rescuing first.
http://chronicleforums.com/groupee/forums/a/tpc/f/5566064631/m/512201337

PLEASE FOLKS... check out any internet group that is asking for money. MANY MANY spam / crooks will be setting up bogus websites to get your sympathy and money.  Please check out the source before sending your hard earned money so that it is put to the best use.