Links
Helpful Preaching and Teaching

BiblicalTraining From intro to seminary level, free class lectures designed to equip believers

Christian Communicators Worldwide Church resources and articles ministry, led by Jim Eilliff

Covenant Seminary Free classroom lectures from Covenant’s own professors, over 20 free seminary-level classes

Desiring God Teaching ministry of John Piper

Grace to You Teaching ministry of John MacArthur Jr.

Granted Ministries Collection of powerful preaching teaching, from pastors old and new

Ligonier Teaching ministry of R.C. Sproul

Uncommonly Powerful Preaching podcast Conglomeration of powerful preaching assembled by Matt Haney

9Marks Teaching and writing ministry led by Mark Dever

Bible and Theology Resources

Christian Classics Library On-line Christian Classics Library

Historic Reformed Confessions

Concordance--Bible Searches Concordances, encyclopedias, and other useful Bible Study helps. Use the NAS with Strong’s for word studies

Monergism Theological resources: books, links, and articles

CARM A rich resource for Christian apologetics and evangelism

Blogs

Michael Haykin's Blog Reflections on Church History and Biography

Reclaiming the Mind A more academic blog (yet quite edifying) from scholar Dan Wallace

The CrossPointe Our own pastors' blog.

Thoughts on the Way Thoughts on Spiritual Truth to Encourage, Exhort, Reprove

Articles and Reading
John Piper and Mark Dever have each compiled a list of books beneficial to Christians, broken down according to subject. See their respective websites above
 
Missions
HeartCry Missionary Society Indigenous missions organization led by Paul Washer
Voice of the Martyrs An organization and magazine devoted to make heard the cries of our brothers and sisters who are being persecuted for Christ's sake