Many different Bible translations and simple search tools. You can also register here which enables you to highlight and underline in passages as well as take notes just like you would in your own Bible.
Crossway.com’s online Bible search engine.
Another online Bible search with several translations and a Bible study tools.
Drawings, photos, timelines, archeology, calendars
20 English versions of the Bible with keywords and topical index; Several commentaries, dictionaries, lexicon, and more
Harmony of the Gospels; Easton’s Bible Dictionary; Nave’s Topical Bible; Several commentaries and dictionaries
Lots of tools. Similar to Crosswalk
Outlines, charts, maps, Strong’s, Commentaries, Lots of misc.
11 Bible versions connected to reference tools; Lots of apologetic info; History and more
This must be downloaded, but it is free, there is a ton of stuff on this site, it looks well worth it.
Rick Warren’s Bible Study Methods: 12 Ways You Can Unlock God’s Word Rick Warren helps readers learn 12 simple, step-by-step approaches to Bible study. Each will help you grow in your understanding of God’s Word.
New International Bible Dictionary, J.D. Douglas and Merrill C. Tenney, editors. Full of information about historical, chronological, archaeological, geographical, social, and biographical aspects of the Bible
Mounce’s Compete Expository Dictionary of Old & New Testament Words, William D. Mounce, editor. Useful tool for anyone with limited or no knowledge of Hebrew and Greek who want to do biblical word studies.
Tyndale Concise Bible Commentary, Robert B. Hughes and J. Carl Laney. Provides biblical scholarship and commentary on every passage of the Bible in a user-friendly format
The IVP Bible Background Commentary: New Testament, Craig S. Keener, and The IVP Bible Background Commentary: Old Testament, Walton, Matthews & Chavalas. These companion resources help you understand the crucial cultural background of the Bible.
The Strongest NIV Exhaustive Concordance, Goodrick & Kohlenberger III. Exhaustive index of every word in the NIV translation; includes the Strong’s numbers and definitions for every Hebrew, Aramaic, and Greek word in the Bible
God’s Big Story by Kristi Stephens
“God’s Truth Revealed: Session One” – Free download of the first chapter of Kathy Howard’s Bible study on the basics of the Christian faith. This first chapter deals with the existence of God, the relevance and reliability of the Bible, and the unique claims of Jesus.
Bible reading plans & quiet time tips, free downloads here