http://horseracing.miningco.com/library/blclip.htm
excellent graphics!

  http://www.talstar.com/cat/graphics/indexg-h.htm#Horses
Has  animated graphics for almost everything!

  http://php.iupui.edu/~rndavies/horsegif.html
Great for people starting their own horsey homepage

 http://www.geocities.com/Yosemite/Trails/3543/funstuff.html
Cute backgrounds and animations

 http://members.aol.com/HawaiiJane/page8.htm
original horse clip art, very nice!