It is free to join and post your profile. If you're a horse person,
riding, training, passionate about horses, this is the place where you
can meet people that share your passion. The profile form is somewhat
basic, but you can add a lot of information in the essay parts of it
so that other members can really get to meet you before they make
contact. This service is great to meet friends that share your
interests as well as finding someone special in your life. You do need
to be a gold member to initiate contact but free members can reply to
messages. All messages are anonymously forwarded to the email address
you signed up with, so be sure to use a private email address, not a
work-related one.

http://www.freewebs.com/pthorse/