Have a look at the The Humane Society of the United States site. There are some videos of them rescuing dogs & cats. Quite tear jerkers as one little black dog had me in tears as he/she was wagging his/her tail like mad & had his/her paws round the guys neck.
Weren't the HSUS people nice with the animals the guy with the black dog was cuddling him so tight it made me cry All those poor animals I would love to be well enough to go out & help. I have sent a donation & bought some of the dog collars instead