A Most Mysterious "Angelic" Manuscript
- Introduction, and English translation of Peter Lombard's Distinction 7 from Book 2 of the Libri Quattuor Sententiarum.
- http://www.newcastle.edu.au/service/archives/lombard/introduction.html

Encyclopædia Britannica: Peter Lombard
- Short article from the 1911 edition. Has some scanner errors, but is legible.
- http://www.1911encyclopedia.org/Peter_Lombard

Peter Lombard (1095-1160)
- An article on the scholastic theologian and his most important work, the Sentences. In the Internet Encyclopedia of Philosophy.
- http://www.iep.utm.edu/l/lombard.htm

The Ecole Glossary: Peter Lombard
- Short essay on his life and writings.
- http://www2.evansville.edu/ecoleweb/glossary/plombard.html

Colish, Marcia L., "Peter Lombard"
- In-depth review by Constant J. Mews of Colish's book on the twelfth-century theologian. [The Medieval Review]
- http://www.infomotions.com/serials/bmmr/bmmr-9507-mews-peter.txt

A Historical Dictionary of Terms in Family History: Peter Lombard
- Highlights Peter Lombard's teaching on the requirements for a valid marriage.
- http://oak.cats.ohiou.edu/~baxter/hist381/terms/peterlom.htm

Commbase
- Software for Windows. Biographical database of medieval commentators on the works of Aristotle and Peter Lombard's Sentences.
- http://www.ou.edu/class/med-sci/Commbase.htm

Sententiarum libri IV
- Photo of a thirteenth-century manuscript page in the collection of Columbia University.
- http://www.columbia.edu/cu/libraries/indiv/rare/images/img0050/

The Franciscan Archive: Peter Lombard
- Partial online edition of the Sentences, in Latin and English. Links.
- http://www.franciscan-archive.org/lombardus/

Catholic Encyclopedia: Peter Lombard
- Biobibliographical essay on the Master of the Sentences.
- http://www.newadvent.org/cathen/11768d.htm

Columbia Encyclopedia: Peter Lombard
- Brief biography of the Italian theologian.
- http://www.bartleby.com/65/pe/PeterLom.html