Stud Farms:
 Darley http://www.darley.co.uk/
 Coolmore http://www.coolmore.com/
 Irish National Stud http://www.irish-national-stud.ie/
 Aga Khan Studs http://www.agakhanstuds.com/
 Shadwell Stud http://www.shadwellandracing.co.uk/
 Derrinstown Stud http://www.derrinstown.com/
 Lanwades Stud http://www.lanwades.com/
 Banstead Manor Stud http://www.juddmonte.co.uk/
 Plantation Stud http://www.plantationstud.co.uk/
 Tara Stud http://www.tarastud.com/
 National Stud (UK) http://www.nationalstud.co.uk/
 Cheveley Park Stud http://www.cheveleypark.co.uk/
 Airlie Stud http://www.airlie-stud.com/
 Gainsborough Stud http://www.gainsborough-stud.com/
 Thoroughbred Breeders' (UK) www.toba.org
 Thoroughbred Breeders' (IRE) http://www.itba.ie/
 Tinnakill House Stud http://www.tinnakill.com/

Sales Companies:
 Keeneland http://www.keeneland.com/
 Goffs http://www.goffs.com/
 Goffs France http://www.goffs.fr/
 Tattersalls http://www.tattersalls.com/
 Tattersalls Ireland http://www.tattersalls.ie/
 Paramount Sales http://www.paramountsales.net/
 Deauville Sales http://www.deauville-sales.com/
 Doncaster Sales http://www.doncsale.co.uk/

Trainers:
 Marcus Tregoning http://www.kingwood-stables.co.uk/
 Brian Meehan http://www.brianmeehan.com/
 Dominic Ffrench Davis http://www.ffrenchdavis.com/
 Trainers Federation (UK) http://www.racehorsetrainers.org/

Racing Organisations:
 The Turf Club http://www.turfclub.ie/
 Horse Racing Ireland http://www.iha.ie/
 The Jockey Club (UK) http://www.thejockeyclub.co.uk/
 The Jockey Club (USA) home.jockeyclub.com
 Emirates Racing Associtaion http://www.emiratesracing.com/
 Hong Kong Jockey Club http://www.hkjockeyclub.com/
 Weatherbys http://www.weatherbys-group.com/ 
 Racehorse Owners Association (UK) http://www.racehorseowners.net/

Racecourses:
 Curragh Racecourse http://www.curragh.ie/
 Leopardstown Racecourse www.leopardstown.com
 Fairyhouse Racecourse http://www.fairyhouseracecourse.ie/
 Punchestown Racecourse http://www.punchestown.com/
 Galway Racecourse http://www.galwayraces.com/
 Navan Racecourse http://www.navangolfandracecourse.com/
 Naas Racecourse http://www.naasracecourse.com/

 Dundalk Racecourse http://www.dundalkstadium.com/
 Newmarket Racecourses http://www.newmarketracecourses.co.uk/
 Epsom Racecourse http://www.epsomderby.co.uk/
 Ascot Racecourse http://www.ascot.co.uk/
 Chelteham Racecourse http://www.cheltenham.co.uk/
 York Racecourse http://www.yorkracecourse.co.uk/
 Doncaster Racecourse http://www.britishracing.com/
 Association of Irish Racecourses http://www.air.ie/
 Racecourse Association (UK) http://www.comeracing.co.uk/

Other Useful Links:
 Racing Post http://www.racingpost.co.uk/
 Sporting Life http://www.sportinglife.com/
 The Irish Field http://www.irishfield.com/
 NPR Web Design http://www.nprwebdesign.com/
 PaddyPower Online http://www.paddypower.com/
 Irish Thoroughbred Marketing http://www.itm.ie/
 Irish-Horses.com http://www.irish-horses.com/
 Equisoft http://www.equisoft.ie/
 Dir 4 Racing http://www.dir4racing.co.uk/
 Horses & Horseracing Links http://www.horseshorseracing.com/