Apologetics Press
Apologetics Press is a non-profit, tax-exempt organization dedicated to the defense of New Testament Christianity. They publish materials that can be used to spread the Gospel of Christ and defend the Christian faith. These materials can be used for personal study, group studies or even evangelical purposes; apologesticspress.org.
Gospel Way
The Gospel way is a Church of Christ website that offers free online Bible study guides, resources, teaching aids, and Bible lessons; http://gospelway.com.
Search TV
In Search of the Lord’s Way is a ministry based out of Edmond Oklahoma at Edmond church of Christ. Here you can watch, listen and get study guides to sermons; http://searchtv.org.