The Thoroughbred Mailing List
- For discussion on thoroughbreds; racehorses, show horses and breeding. Also provides pedigree research and analysis.
- http://finance.groups.yahoo.com/group/thoroughbred/

TBHeritage
- Discussion of early racing foundations of the Thoroughbred in England and America. Public message archives.
- http://finance.groups.yahoo.com/group/TBHeritage/

Retrain Thoroughbreds
- A mailing list for owners of off-track thoroughbreds. Share training tips, ask questions, horses for sale/adoption. Discussion open to injury rehab, natural horsemanship, feeding help, tack questions. Includes public message archives.
- http://sports.groups.yahoo.com/group/retraintbs/

Race Horses Reunited
- Community web site set up to enable horse owners in the United Kingdom to chat about their horses and experiences with them. [MonkeyGroups]
- http://monkeygroups.com/_area/index.cfm?dummy=1&width=756&height=0&CFID=549115&CFTOKEN=53514713

Ex Racers Club
- A club and online support group for the ex-race horse and owner; also supporting the re-homing of ex-racehorses. Includes general forum, rescue sales forum, registration, and photos.
- http://www.horse-directory.co.uk/exracers.htm