Chivalric

Society of the Golden Fleece - Association of those interested in the Order of the Golden Fleece. Includes history, insignia and knights of the order.
http://www.antiquesatoz.com/sgfleece/index.htm

Knighthood and Orders of Chivalry - Includes introduction to knighthood, medieval women and orders, general and order-specific historical information and an essay on the legitimacy of orders.
http://www.heraldica.org/topics/orders/

Corpo della Nobilta Sammarinese - Association of the Nobility of San Marino - Discusses the organization and titles. [Italian/English]
http://valdausa.tripod.com/corpodellanobiltasammarinese

Italian Law and Unofficial Orders - A discussion of laws in Italy regarding unrecognized orders.
http://www.heraldica.org/topics/orders/itbgord.htm

Great Orders of Chivalry - Includes information on extant orders, religious and secular, with a special focus on legitimacy.
http://www.chivalricorders.org/orders/index1.htm

International Knightly Order of Saint George - Canadian Priory - Aims assist the needy. Includes history, insignia and knights of the order.
http://www.knightstgeorge.com/

French Law and Unofficial Orders - A discussion of the laws in France dealing with practices of unrecognized orders.
http://www.heraldica.org/topics/orders/frbgord.htm