Chemical Bonding and Structure (Chemistry)
Molecular Structure & Bonding 
Another excellent link by MSU that goes through the geometry of molecules, isomers, resonance, and a little bit of orbital theory. There is even a couple of practice problems. "Bonding configurations are readily predicted by valence-shell electron-pair repulsion theory, commonly...
Force Laws, Lewis Structures, Resonance lecture 
This lecture covers the basics of chemical bonding and molecular structure. After discussing Lewis-dot notation and formal charge, Professor McBride shows that in some "single-minimum" cases the Lewis formalism is inadequate and salvaging it required introducing the confusing concept of "resonance...
Earnshaw's Theorem and Double Minima lecture 
This lecture covers the "double-well potential of the ozone molecule," "stable arrangements of charged particles" as prescribed by Earnshaw's Theorem, and the all-to-familiar "plum-pudding" atom. Also talks about Coulomb's law. This is part of the Open Yale courses series.
