Wikipedia: Arminius
- A short biography.
- http://en.wikipedia.org/wiki/Arminius

The Teutoburg Massacre AD 9
- Account of the massacre of Quinctilius Varus and his three Roman legions by German tribes, with references.
- http://www.falcophiles.co.uk/facts/teutoburg.html

Encyclopædia Britannica: Arminius
- Short biography of the military leader. From the 11th edition (1911).
- http://encyclopedia.jrank.org/APO_ARN/ARMINIUS.html

Cassius Dio Roman History: Book LVI
- Excerpt from the Cary translation provided by LacusCurtius describing the defeat of Varus' legions.
- http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Cassius_Dio/56*.html

Who Was Arminius?
- An account of the Cherusci chief Hermann, called Arminius by the Romans, with related links.
- http://www.bessel.org/armihist.htm

Arminius and Teutoburger Wald
- Short summary of the battle.
- http://www.ancientsites.com/aw/Thread/81774