Breeders' Cup Archive - video and more for every running

CompuRace - download historical races for 75 cents per race

Belmont Stakes - historical replaces for all the Triple Crown winners and more

Hall of Fame - many of the horses listed here have video clips of at least one of their races available for viewing online

Harness racing from AudioScape - scroll down for the 1997 Messenger, Red Mile, and Little Brown Jug

Man O'War vs. Sir Barton - video clip from their match race

Phar Lap - "The Mighty Conqueror" video from the Victoria Museum

Secretariat's Triple Crown - from the National Museum of Racing