Verse-by-Verse Commentaries:

Michael Fox, Proverbs 1-9 (Anchor), Doubleday, 2000.
Duane A. Garrett,
Proverbs, Ecclesiastes, Song of Songs (New American Commentary, 14), Broadman & Holman, 1993.
Roland Murphy,
Proverbs (Word), 1999.
Allen P. Ross, "Proverbs" in Expositor's Bible Commentary, 5, Zondervan, 1991.
Raymond C. van Leeuwen, "Proverbs" in
The New Interpreter's Bible, vol. V, Abingdon, 1997.
Bruce K. Waltke, Proverbs (forthcoming)

Monographs, Compilations, and Studies:

Daniel J. Estes, Hear, My Son: Teaching and Learning in Proverbs 1-9 (New Studies in Biblical Theology), Eerdmans, 1998.
Raymond C. Van Leeuwen, Context & Meaning in Proverbs 25-27 (SBL Dissertation), Scholars Press, 1988.
Thomas P. McCreesch,
Biblical Sound and Sense: Poetic Sound Patterns in Proverbs 10-29 (JSOT Supplement, 128), Sheffield Academic, 1991.
Bruce K. Waltke, The Book of Proverbs, Westminster Media, tape series.
Roy B. Zuck (ed.) Learning from the Sages, Baker, 1995. ***1/2

Articles and Essays:

Steven M. Baugh, "Wisdom and Folly," Kerux 3.1 (May 1988).
Rick W. Byargeon, "The Structure And Significance Of Prov 9:7-12," JETS 40 (1997): 367-375.
William C. Davis, "The Claims of Wisdom in Proverbs 8:1-36," Kerux 3.1 (May 1988).
Bruce K. Waltke, "Introducing Proverbs" CBRF Journal 128 (1992): 5-11.
________ "Lady Wisdom as Mediatrix: An Exposition of Proverbs 1:20-33," Presbyterion 14 (1988): 1-15.
________ "The Authority of Proverbs: An Exposition of Proverbs 1:2-6," Presbyterion 13 (1987): 65-78.
________ "The Book of Proverbs and Old Testament Theology," BSac (1979): 302-317.
________ "The Book of Proverbs and Ancient Wisdom Literature," BSac 136 (1979): 221-238.

Other Commentaries of Interest:

Richard J. Clifford, Proverbs: A Commentary (OTL), Westminster John Knox, 1999.
Ellen F. Davis, Proverbs, Ecclesiastes, and the Song of Songs, Westminster John Knox, 2000.
David Hubbard, Proverbs (Mastering the Old Testament), Word Books, 1989.
Derek Kidner, Proverbs (Tyndale), Inter-Varsity, 1964.
R. Laird Harris, "Proverbs" in The Wycliffe Bible Commentary, The Southwestern Company, 1968.
Thomas P. McCreesh, "Proverbs" in The New Jerome Study Bible, Prentice Hall, 1990: 453-461.
William McKane, Proverbs (OTL), Westminster John Knox, 1970.
Crawford H. Toy, A Critical and Exegetical Commentary on the Book of Proverbs (ICC), T & T Clark, 1899.

Other Monographs of Interest:

Scott L. Harris, Proverbs 1-9: A Study of Inner-Biblical Interpretation (SBL Dis, 150), Scholars Press, 1996.
Lennart Bostrom, The God of the Sages: The Portrayal of God in the Book of Proverbs (Coniectanea Biblica: Old Testament Series, 29),
____ Coronet Books, 1990.

Other Articles:

Daniel P. Bricker, "The Doctrine Of The ‘Two Ways’ In Proverbs," JETS 38 (1995): 501-517.
David Noel Freedman, "Proverbs 2 and 31: A Study in Structural Complementarity" in Tehillah le-Moshe (ed. M. Cogan, et al), 1997: 47-55,

Gary A. Rendsburg, "Double Polysemy in Proverbs 31:19" in Humanism, Culture, and Language in the Near East (ed. A. Afsaruddin, et al), 1997: 267-274.

Murray H. Lichtenstein, Chiasm and Symmetry in Proverbs 31," Catholic Biblical Quarterly 44 (1982): 202-211.