LDS.org: General Conference Talks on Apostasy
LDS.org: Resources on the Gospel Topic of Apostasy
LDS.org: Search Results from doing search on "Apostasy"
"A Very Good Argument"
"Can I Really Know?" - Experience by Boyd K. Packer on testimony (comparing to explaining salt)
First Presidency Statement (determining what is true and false)
"Give the Lord Equal Time" - personal experience shared by M. Russell Ballard
Harold B. Lee (excerpt from Gen. Conf.)
Henry B. Eyring (excerpt from BYU Education Week Dev.)
Spiritual Vertigo--being just a few degrees off course (Robert D. Hales - BYU fireside excerpt)
"The Soil and Root of Testimony" - John K. Carmack (excerpt from Gen. Conf.)
"Too Numb To Know"
Quotes on Apostasy
"Alternative Voices" - Dallin H. Oaks
"Beware of False Prophets and False Teachers" - M. Russell Ballard,
"Choose the Light" - Elder Vern P. Stanfill
"Come, Join with Us" - Pres. Dieter F. Uchtdorf
"Come, Listen to a Prophet's Voice" - Virginia U. Jensen
"Finding Safety in Counsel" - Henry B. Erying
"From Such Turn Away" - Boyd K. Packer
"It Works Wonderfully!" - Pres. Dieter F. Uchtdorf
"Judge Not According to the Appearance" - Boyd K. Packer
"Keeping Covenants and Honoring the Priesthood" - James E. Faust
"Lord, I Believe" - Jeffrey R. Holland
"Opposition in All Things" - Dallin H. Oaks
The Abundant Life - James E. Faust
"The Iron Rod" - Harold B. Lee
"The Keys that Never Rust" - James E. Faust
"The Prophetic Voice" - President James E. Faust
"Absolute Truth" - Spencer W. Kimball (good)
"Choose You This Day" - Kathy D. Pullins - BYU Women's Conf.
"Our Strengths Can Become Our Downfall" - Dallin Oaks
"That Our Children May Know" - Jeffrey R. Holland (Apostasy--personal, familial, dispensational)
"The Great Prologue" - Mark E. Peterson
"When Shall These Things Be?" - M. Russell Ballard (on the last days and not being deceived by false prophets and false teachings)
Book: Follow the Living Prophet - by Brent Top and others.