There is a very interesting resource mentioned on this thread - perhaps you would like to link it. One FReeper just found the house of a friend still intact, allaying some fear.
Perhaps the link would be of use to some others. Perhaps you would like to add it to your thread-starter list next time...
http://www.freerepublic.com/focus/f-news/1474337/posts
Complete Aerial Picture Survey of Mississippi Coast Damage
Great post. Was pinged to that info this afternoon, and immediately forwarded it to friends who are hoping to find out whether their home is still standing in Biloxi.