I'll keep adding them as I find them.
Eye on the Trail, an official Iditarod blog with frequent news updates
Zuma's Paw Prints, an official Iditarod blog from canine perspectives
Four-time Iditarod winner Jeff King's blog: Husky Homestead
Four-time Iditarod winner Martin Buser's blog and website: Happy Trails Kennels
Skunk's Place Kennel Dog Log's Iditarod posts, written by husband-and-wife mushers Aliy Zirkle and Allen Moore, which include information about dog health and other concerns animal lovers may have about mushing
Crow Village Iditarod Blog