"so as to walk in a manner worthy of the Lord, fully pleasing to Him, bearing fruit in every good work and increasing in the knowledge of God." - Colossians 1:10
http://www.gty.org/ - Grace to You - ministry of John MacArthur
http://www.desiringgod.org/ - God-centered resources from the ministry of John Piper
http://www.founders.org/ - Founders Ministries - committed to Historic Baptist Principles
http://www.heartcrymissionary.com/ - Heart Cry Missionary Society
http://www.monergism.com/ - Monergism - Ministry resources to proclaim the truths of Scripture as reiterated in the 16th century Reformation that salvation is by grace alone, through faith alone, in Christ alone, as revealed in the Scripture alone to the glory of God alone.
http://www.igracemusic.com/hymnbook/home.html - Reformed University Fellowship (RUF) on-line hymn resource
http://thegospelcoalition.org/ - Gospel Coalition - A fellowship of evangelical churches deeply committed to renewing their faith in the gospel of Christ and to reforming our ministry practices to conform fully to the Scriptures.