The Hurlingham Polo Association, United Kingdom.
(A copy of the Rules of Polo can be viewed/downloaded from this website.)
http://www.hpa-polo.co.uk

United States Polo Association website
http://www.us-polo.org

Polo Players' Edition
http://www.poloplayersedition.com

Federation of International Polo website
http://www.fippolo.com

Useful polo bulletin board and information exchange
http://polonews.com

International polo information exchange
http://www.klik1.com/polo

The British Horse Society Website
http://www.bhs.org.uk

On-line equestrian magazine and information centre
http://www.stabletalk.co.uk/bhs/index.php3

Stable management and horse care information website
http://www.equileisure.com.au/category19_1.htm

Horse care information site
http://www.equisearch.com/farm/stable/