Margaret, the "Can't cry hard enough" website tribute is very special-- thanks for sharing that. That's such an accurate phrase -- can't cry hard enough...
chiqitita - the link you posted is beautifully done also -- thanks for sharing. (It's a big one, folks -- if you're on dial-up, I'm not sure how long it'll take.)
Regarding the search and rescue dogs, you can do a Google search and find some pages -- here's one that has a number of links to stories of several different dogs that helped at the WTC. There is a story about one dog, Bear, who has developed serious health problems. Don't read the story about Git Ander, a police dog, unless you are ready for tears and anger...
Search & Rescue dogs - WTC