Here is my directory of free horse clipart. You will find all kinds of sites offering lots of different kinds, from cute and fun to beautiful and realistic.
If you are a horse or pony lover, you will find lots of them here! You can use them to make posters for your room, decorate your folders for school, make invitations for your birthday party, send notes to your horsecrazy girlfriends and lots more!
If you find another site I should list, let me know!
There are pictures of ponies and horses of every size and color on this site. Plus you will find links to more pages of them!
Millermark Creations has some very nice horse-n-pony clipart on their site, from realistic to cartoons. Some are black and white and others are in color.
There are some really pretty equestrian graphics on this site. I think you'll find some you really like! (Like this one of a horse rearing.)