Worldwide Study Bible (CCEL)
This site includes the "Worldwide Study Bible." The WWSB is a collection organized by chapter and verse of the Bible with links to ancient, medieval and modern commentaries on the given passage. Also, this site includes the ability to search with "AND, OR, NOT" the entire collection of major Christian writings through the Reformation. E.g., type in "Jesus AND Adam AND naked AND tree" and you will pull up many discussions of Jesus and Adam and how redemption recapitulates the fall.