Iditarod

American Kennel Club - Information about sled dogs
Balto - A sled dog made famous through its race to rescue children, which led to creation of Iditarod
Dogsled.com - Coverage of the race
The Iditarod Trail Sled Dog Race - The official website for the race, lots of information
Iditarod: Race Across Alaska - Website from Scholastic with links about the the trail, history, etc.
Iditarod - Article from World Book Encyclopedia Online
Iditarod FAQ's - Frequently Asked Questions about the race
National Historic Iditarod Trail - Information and history about the trail system