Wikipedia: Charles de Secondat, Baron de Montesquieu
- Entry from this open encyclopedia.
- http://en.wikipedia.org/wiki/Charles_de_Secondat%2C_Baron_de_Montesquieu

Liberal Thinkers: Charles de Montesquieu
- A short biography from the site of Liberal International.
- http://www.liberal-international.org/editorial.asp?ia_id=675

Free Speech Philosophers: Baron de Montesquieu
- Outline of certain points in Montesquieu's teachings about liberty.
- http://www.uark.edu/depts/comminfo/freespeech/montesquieu.html

Censorship File Room: Montesquieu, Works of
- Outline of the reception in Rome and Paris of the Persian Letters and The Spirit of the Laws.
- http://www.cd.sc.ehu.es/FileRoom/documents/Cases/168montesq.html

Baron de Montesquieu, Charles-Louis de Secondat
- Scholarly study of this key Enlightenment thinker by Hilary Bok. From the Stanford Encyclopedia of Philosophy.
- http://plato.stanford.edu/entries/montesquieu/

A Commentary and Review of Montesquieu's Spirit of Laws
- An 1811 commentary by Destutt de Tracy, from the English translation by Thomas Jefferson.
- http://www.econlib.org/library/Tracy/ddtMSL0.html

Biography.com: Montesquieu
- Concise biographical paragraph.
- http://search.biography.com/print_record.pl?id=6142

Great Voyages: Montesquieu
- Biographical timeline.
- http://oregonstate.edu/instruct/phl302/philosophers/montesquieu.html

Catholic Encyclopedia: Montesquieu, Charles-Louis de Secondat, Baron de
- Detailed study of this writer's intellectual career, by Antoine Degert.
- http://www.newadvent.org/cathen/10536a.htm