Smith's Bible dictionary online

Matthew Henry's Commentary Online

John Gill's Commentary online

Barnes Notes online

People's New Testament Commentary

Adam Clarke's Commentary online

Finney's Notes online

John Wesley's Notes

Jamison-Faucet-Brown Commentaries

Works of Josephus online

The Trail of Blood online

FB Meyer's Bible Notes

Leonard Ravenhill online

Puritan Sermons (some calvinism!!!)

Foxe's Book of Martyrs