Catholic Encyclopedia: Philo Judaeus: Article on his life, writings and doctrine, by Emile Brehier.
Ioudaios Review: David T. Runia's assessment of the contemporary value of the C.D. Yonge translation of Philo's works.
On the Embassy to Gaius: Philo's account of the Jewish embassy to Rome in 40 AD, in the 19th-century Yonge translation.
Philo of Alexandria: A detailed review of his teachings and legacy. Internet Encyclopedia of Philosophy article by Marian Hillar.
Philo of Alexandria: Concise footnoted review of his teachings and influence.
Philo of Alexandria and Rabbinic Theology: Notes on this thinker and his intellectual context, from an appendix to Alfred Edersheim's 1953 The Life and Times of Jesus the Messiah.
Resource Page for Philo of Alexandria: Extensive annotated links related to the thinker and his historical context.
The Law of God and the Laws of the Cities in Philo of Alexandria: Paper delivered at the World Congress of Philosophy by Francesca Calabi. Discusses Philo's view of philosophy as the knowledge of the divine order.
The Works of Philo: Complete online text of the C.D. Yonge translation.