Gwrych Castle
- Near Abergele, North Wales. Fairytale white castle, now nothing more than a romantic ruin. Includes the history, galleries, poetry, art, books, and ghosts.
- http://www.btinternet.com/~bevbaker/gwrychcastlepublications/

Carew Castle and Tidal Mill
- A magnificent Norman castle in Pembrokeshire which later became an Elizabethan residence. Includes an illustrated history, visitor information and activities and events programme.
- http://www.carewcastle.com/

Great Castles of Wales
- Site by Paolo Ramponi. Interactive map brings up photographs of the major Welsh castles, with plans and history taken mainly from the CADW guidebooks. English and Italian language versions.
- http://www.greatcastlesofwales.co.uk/

Raglan Castle, South Wales
- Two old postcard views and brief history from Data Wales.
- http://www.data-wales.co.uk/raglan.htm

Pencoed Castle, Gwent
- Data Wales supplies history, plans and photographs. Invites your views on the proposal to create "Europe's largest all-weather leisure and recreational facility" in the castle grounds.
- http://www.data-wales.co.uk/pencoed.htm

Penhow Castle, South Wales
- Photographs (external and internal) and visitor information supplied by Data Wales.
- http://www.data-wales.co.uk/penhow1.htm

Caldicot Castle, South Wales
- Photograph, very brief history and information on medieval banquets and weddings there from Data Wales.
- http://www.data-wales.co.uk/castle6.htm

Usk Castle
- The Friends of Usk provide a plan and illustrated history and propose urgent works and improvements to this Norman castle in Wales.
- http://uskcastle.com

Conwy Castle, North Wales
- Archival photograph and brief history from Data Wales.
- http://www.data-wales.co.uk/castle3.htm

Caerphilly Castle
- Photograph and brief history from Data Wales.
- http://www.data-wales.co.uk/castle5.htm

Caernarfon Castle, North Wales
- Photograph and quotation from D.M. Robinson and Roger S. Thomas, "Wales, Castles and Historic Places", supplied by Data Wales.
- http://www.data-wales.co.uk/castle1.htm