What follows is an an organized and curated list of content. Click here for an exhaustive list of content on Psalms
Kenneth Boa: 24. Psalms  Part of the series: Visual Survey of the Bible.
Psalms  8 lesson overview.
Bill McRae: 18. Psalms Part 1  Part of the series: Survey of the Bible.
19. Psalms Part 2  Part of the series: Survey of the Bible.
Bob Deffinbaugh: 25. Wisdom Literature: The Psalms, Part I [, Translated] Part of the series: From Creation to the Cross. French translation available.
26. Wisdom Literature: The Psalms, Part II  Part of the series: From Creation to the Cross. French translation available.
Mark Dever: Wisdom for Spiritual People – The Message of the Psalms  Capitol Hill Baptist Church.
Ray Stedman: Psalms: The Worship of an Honest Heart [, , Translated] Peninsula Bible Church. Spanish translation available.
Steven J. Cole: Psalms [, ] 67 messages.
Bob Deffinbaugh: A Psalm for All Seasons: Studies in the Book of Psalms  15 lessons.
4. Nature's Part in God's Perfect Plan (Psalm 19; Romans 8:18-25; Isaiah 65:17-25)  Part of the series: What in the world is going on? A study of God's plan for man.
Becoming a Leader After God's Heart: Studies in the Life of David  6 lessons in the series: Becoming a Leader After God's Heart: Studies in the Life of David.
J. Hampton Keathley, III: Psalm 1: Two Ways of Life -- A Psalm of Wisdom 
Steve Sanchez: Is Your Spiritual Vision 20/20? Meditations on Psalm 73 [, ]
Alex Strauch: Behold the Beauty of Unity (Psalm 133) 
Mark Dever: Messages on various Psalms (10, 21, 67-68, 81, 98, 104, 119-121, 131-134)  Capitol Hill Baptist Church.
Susan Curry: 7. David - Walking in Repentance and Restoration [, Curriculum] Part of the series: Step by Step: Learning to Walk with God - A MOM'S Study.
Gwynne Johnson: Psalms: Songs for the Soul [, , Curriculum] 8 lessons.
Sandra Glahn: 2. Fearfully and Wonderfully Made [Curriculum] Part of the series: Your Worth in Christ.
3. The Story of the Woman with the Issue of Blood  Part of the series: Tell Me a Story.
Greg Herrick: Is the Bible the Only Revelation from God? 
Psalm 30 
J. Hampton Keathley, III: A Challenge for Fathers (Psalm 78:1-8) 
Sung Jin Park: Melchizedek as a Covenantal Figure: The Biblical Theology of The Eschatological Royal Priesthood 
Richard D. Patterson: The Believer's Hope: The Solid Rock 
Psalm 145: A Song in "G Major" 
Study Helps and related
Tom Constable: Tom Constable’s Expository Notes on Psalms  This is also available in the Net.Bible.org Study Environment.
David Malick: An Introduction to the Book of Psalms 
An Argument of the Book of Psalms 
Selected Bibliography on the Book of Psalms 
J. Hampton Keathley, III: 5. The Poetical Books  Part of the series: Concise Old Testament Survey.
Ray Stedman: Folksongs of Faith  18 Psalms. Peninsula Bible Church.
Ray Stedman: Obtaining God's Help 5 messages on Psalm 77.
Steve Zeisler: Patterns for Prayer  11 Psalms. Peninsula Bible Church.
Rob Rayburn: Psalms  16 Psalms. Faith Presbyterian Church.
Rob Rayburn: Unfamiliar Psalms [, ] 9 Lessons. Psalm 6, 14, 26, 33, 47, 62, 74, 112, 115. Faith Presbyterian Church.
Sinclair Ferguson: Psalms  12 lessons. (search by "speaker" "Ferguson, Sinclair B.")
Bruce Waltke: Psalms  19 messages, mostly introductory and background to the Psalter.
Edmund P. Clowney: Preaching Christ from the Psalms 
William Still: William Still on the Psalms  Psalms 1-24.