John Knox: Preacher of the Scottish Reformation
- Biographical article emphasizing Knox's preaching against the ‘idolatry of the Mass’ and his many encounters with Roman Councils and before Mary Queen of Scots.
- http://www.quodlibet.net/perry-knox.shtml

Reformed Online: Encyclopaedia - Knox, John
- Biography of this leader of the Calvinistic reformation in Scotland.
- http://www.reformiert-online.net/lexikon/11_eng.php

Models for Reformation: John Knox
- A short biography.
- http://www.forerunner.com/forerunner/X0525_Bios-_John_Knox.html

John Knox on the Roman Catholic Mass
- Text of 1550 sermon; links to articles on the 1994 Catechism, and free tracts for Roman Catholics.
- http://www.born-again-christian.info/catholic.mass.htm

The Lord's Supper
- Text of the 1550 John Knox sermon; bibliography of related books from a Protestant perspective.
- http://www.born-again-christian.info/lords.supper.htm

Hanover University: John Knox
- Includes e-texts of about 20 written works, including letters, sermons, tracts.
- http://history.hanover.edu/early/knox.html