Backyard Racehorse
Networking for owners and trainers across the United States
HorseWorldData
The harness racing section of HorseWorldData, an information clearinghouse for the worldwide community of equine enthusiasts. Includes listings of and links to racetracks, as wel…
Racehorseworld
Worldwide information on horse racing, with latest news and results. UK race tracks are listed. Also contains a message board and vacation destinations.
Startpoint Trotting Europe
A comprehensive collection of links to European harness racing. Organisations, racetracks, farms, trainers, and data.
The HayNet
The harness racing section of the HayNet, a comprehensive directory of horse-related sites.
USTA Links
A very large collection of categorized links without comments (from the U.S. Trotting Association).