AQHA  http://www.aqha.com/

Online Pedigree Research  http://www.pedigreequery.com/

EquineLine  http://www.equineline.com/

Equibase (Racing info)  http://www.equibase.com/

Turf Paradise  http://www.turfparadise.com/racing.html

Will Rogers Downs  http://www.cherokeecasino.com/will_rogers_downs/overview.aspx

Lonestar Park  http://www.lonestarpark.com/