Chem1 Hypertext: Equilibrium by Stephen Lower (retired) Simon Fraser U
http://www.chem1.com/acad/webtext/chemeq/
Thermodynamics of chemical equilibrium
http://www.chem1.com/acad/webtext/thermeq/

General Chemistry II: A Virtual Textbook by Michael Blaber at Florida State U
http://mikeblaber.org/oldwine/chm1046/chm1046.htm > Lecture Notes > Chemical Equilibrium

The relationship of free energy and equilibrium by Ron Rinehart at MPC

from the Media Portfolio designed to accompany
General Chemistry: Principles and Modern Applications 8/e
by Petrucci, Harwood, and Herring (Prentice-Hall)
Spontaneous Change: Entropy and Free Energy
http://cwx.prenhall.com/petrucci/medialib/media_portfolio/20.html

Equilibrium applets by David N. Blauch at Davidson College
http://www.chm.davidson.edu/ChemistryApplets/equilibria/
These are some really good interactive animated illustrations of many aspects of kinetics with some text accompaniment. They may take a good bit of time to load over a 28/56K modem, so you might want to view them in PS-205 or the library.
Browsers must support Java 1.1 or higher in order to execute the applets employed in these pages. JavaScript support is also required. These pages and applets have been tested and found to run correctly under Netscape Navigator 4.73 and Internet Explorer 5.

General Chemistry II Lecture notes by Angel C. deDios at Georgetown U
works best with Netscape 4.7x
http://bouman.chem.georgetown.edu/S02/syllabus.html > Chemical Thermodynamics
http://bouman.chem.georgetown.edu/S02/lect20/lect20.htm
http://bouman.chem.georgetown.edu/S02/lect21/lect21.htm
http://bouman.chem.georgetown.edu/S02/lect22/lect22.htm

PowerPoint presentation on chemical equilibrium by David P. White at UNC Wilmington
provided by William Reiff at Northeastern University
http://www.chem.neu.edu/courses/reiff/download/Blb_Chpt15.ppt

PowerPoint presentation on aqueous equilibria by David P. White at UNC Wilmington
provided by William Reiff at Northeastern University
http://www.chem.neu.edu/courses/reiff/download/Blb_Chpt17.ppt
it's also great for acids and bases!!!

PowerPoint presentation on equilibrium by Bob Belford at the University of Arkansas, Little Rock
http://www.ualr.edu/rebelford/chem1403/c1403lec/c1403lec.htm > Ch 16: Equilibrium
or from http://www.ualr.edu/rebelford/chem1403/chem1403.htm

Equilibrium interactive quizzes by Bob Belford at the University of Arkansas, Little Rock
http://www.ualr.edu/rebelford/chem1403/q1403/chem1403QP.htm > Ch 16: Equilibria
Thermodynamics interactive quiz by Bob Belford at the University of Arkansas, Little Rock
http://www.ualr.edu/rebelford/chem1403/q1403/chem1403QP.htm > Ch 20: Thermodynamics

Zumdahl PowerPoint presentation on chemical equilibrium
provided by William Reiff at Northeastern University
http://www.chem.neu.edu/courses/reiff/download/Zum_Chpt13.ppt

An Analogy for Chemical Equilibrium, DG, and DG° by Gary L. Bertrand at U Missouri -- Rolla
http://web.umr.edu/~gbert/EQUIL/equil.html

Entropy Is Simple by Frank L. Lambert, Professor Emeritus at Occidental College
http://www.entropysimple.com/
Second Law of Thermodynamics by Frank L. Lambert
http://www.secondlaw.com/
and its offspring site
http://www.2ndlaw.com/
Shakespeare and Thermodynamics: Dam the Second Law!
The Human Importance of Activation Energies by Frank L. Lambert
http://www.shakespeare2ndlaw.com/
and Frank's newest offering, www.entropysite.com with links to those above and articles in J. Chem. Ed
these sites are written for students and intelligent laymen, but those of us who teach science can also really benefit from the fresh perspective and corrections of misconceptions that these sites provide.

The Page of Entropy by Dave Slavin at Morningside College, Sioux City, IA
http://webs.morningside.edu/slaven/Physics/entropy/index.html
http://web.archive.org/web/20010603185755/www.svsu.edu/~slaven/Entropy.html
another fine expose on the topic from a physicist's point of view

Equilibrium info [from the Squier Group at UCSD:
http://web.archive.org/web/20011031145639/www-wilson.ucsd.edu/education/gchem/equilibrium/

Solution Equilibrium Quizzes from Ohio State University
http://lrc-srvr.mps.ohio-state.edu/under/chemed/qbank/quiz/bank11.htm
Solubility Product Quizzes from Ohio State University
http://lrc-srvr.mps.ohio-state.edu/under/chemed/qbank/quiz/bank13.htm

Work and Entropy Quizzes from Ohio State University
http://lrc-srvr.mps.ohio-state.edu/under/chemed/qbank/quiz/bank15.htm