J. Gresham Machen (1881-1936)
- Brief article describes Machen's politics as radically libertarian.
- http://www.acton.org/publications/randl/rl_liberal_en_127.php

Defenders of the Faith: John Gresham Machen and the Defence of Christian Truth
- Recounts Machen's early training and subsequent rejection of liberalism.
- http://www.evangelical-times.org/Website_Pages/ArticleDetail.php?articleID=1322

J. Gresham Machen's Response to Modernism
- Article by John Piper on the life and work of Machen (HTML and streaming audio).
- http://www.desiringgod.org/ResourceLibrary/Biographies/1464_J_Gresham_Machens_Response_to_Modernism/

Christianity and Liberalism
- Online book by Machen, which is a classic treatment of the age old controversy between Orthodox Christianity and Liberalism.
- http://www.biblebelievers.com/machen/

The Christian Faith in the Modern World
- Online book by J. Gresham Machen.
- http://www.christianbeliefs.org/books/chrfaith/ChrFaith-Machen-00.html

J. Gresham Machen
- Page of links to sites about Machen.
- http://www.misterrichardson.com/machen.html