Websites
Truth for Life: Ministry of Alistair Begg
Great Research Resources: Christian Classics Ethereal Library
Desiring God: Ministry of John Piper
Ligonier Ministries: Ministry of RC Sproul
Strong's, Hebrew and Greek Search: Blue Letter Bible

Devotional Books
Valley of Vision: A Collection of Purtitan Prayers
Charles Spurgeon's Morning and Evening Devotional
Daily Light by Samuel Bagster