British Library
British Library: Elizabeth I and the Spanish Armada
Through short frames with pictures and narrative, the story of the Armada unfolds. A good background to the battle is also provided. Click on the sources on the index to pull up each frame.
Other
Defeat of the Spanish Armada
Paper on the defeat of the Spanish Armada includes a Summary, the Objectives and Planning of the Armada, the famous storm, and the aftermath.