http://www.swisscastles.ch/default.htm
A French site with aerial photographs of Swiss castles.
http://rickster.org/html/castle_history.html
An English page with a long history on Stirling castle.
http://terranet.terranet.fr/jmr/index.html
A site in french on French castles
http://www.users.zetnet.co.uk/glove/castle.htm
A site with large pictures of Stirling Castle.
http://www.castlewales.com/home.html
An excellent site on Welch castles.
http://www.radix.net/~mfeinberg/castles/castles.htm
An English site w/ pictures