Update August 11, 2022: the contents of this post have been moved to the following two pages:

Bible Dictionaries Online: major Bible dictionaries that are available for free online borrowing through the Internet Archive. They are all in English and were published between 1992 and 2011.

Bible Commentaries Online: Bible commentaries that are available for free online borrowing through the Internet Archive. They are all in English and were published between 1980 and 2015.