Bible Odyssey is an excellent resource for all things biblical studies managed by the Society of Biblical Literature, the leading professional society for biblical scholarship. It includes short accessible articles by Bible scholars on a wide range of topics.
The Digital Dead Sea Scrolls enables access to images of the ancient manuscripts of several famous Dead Sea Scrolls along with their translations.
Early Jewish Writings provides English translations of the Jewish Pseudepigrapha and Apocrypha as well as books by Philo of Alexandria and Flavius Josephus.
Early Christian Writings provides English translations of a wide range of writings, including apocryphal and patristic books.
The Perseus Digital Library provides access to ancient Greek and Latin texts along with English translations.