Other
Ray Stedman: Adventuring Through the Bible
"Adventuring Through the Bible" is a comprehensive guide to the entire Bible with Bible commentary. This site is an excellent place to start if you are new to the Bible and/or have questions about evangelical Christianity.
Other
Ray Stedman: Expository Studies in First Corinthians
An in-depth study of the Apostle Paul's first epistle to the Corinthians.
Luther Seminary
Bible Tutor: 1 Corinthians
Bible Tutor offers an excellent introduction to the first letter to the Corinthians from Paul. It contains links to important passages within the book.
University of Maryland
Early Americas Digital Archive: Meditation 60
The complete text of the poem "1 Corinthians X:4: And Did All Drink the Same Spiritual Drink" by Edward Taylor.