Khan Academy
Khan Academy: Bond Hybridization
Practice determining the hybridization for atoms in covalent compounds. Use the interactive scratch pad to work out the problems.
Davidson College
Davidson College: Valence Shell Electron Pair Repulsion (Vsepr) Model
Presents examples of molecules that do not match the expected bond angles in the Valence-Shell Electron-Pair Repulsion Model. Requires Java.
University of Southern California
Atomic Bonds
This slide show on atomic bonds contains several slides on electron affinity. Other topics include covalent, Sigma and Pi bonds, and atomic bonding in solids.
Simon Fraser University
Chem1 Virtual Textbook: The Valence Bond Model
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with hybrid orbitals and specifically the valence bond model.
Michael Blaber, PhD
Florida State University: Molecular Geometry and Bonding Theories
This article from the Florida State University contains information on multiple bonds and orbitals. Great charts and pictures are shown to help the educational process. Definitely a great site to check out on the subject.
Other
Time Domain Cvd: Hybrid Orbitals and Complex Molecules
Good look at the orbital hybridization that goes along with the different arrangements of electron clouds. Solid information and graphics.
Other
Mark Bishop: Hybrid Orbitals
Cool visual site that shows a 3-D image of the various hybrid orbitals that are possible. Requires the CHIME plug-in to view images.
Other
Monterey Peninsula College: Molecular Orbital Theory
Very deep presentation of molecular bonding and orbital theory. Nice graphics and text make it a good presentation of some high end material.
Michael Blaber, PhD
Florida State University: Basic Concepts of Covalent Bonding: Covalent Bonding
Good introduction and graphics make this a solid page for understanding the orbital role in bonding and molecular geometry. The author is a professor at Florida State University.
University of Kentucky
University of Kentucky: Hydrogen Like Orbitals
Good site for viewing atomic orbitals. Click on an energy level and you get a simulated three dimensional image of the orbitals.
Other
Monterey Peninsula College: Pi Bond
Monterey Peninsula College faculty page simply shows a 3-D image of a Pi bonding orbital. Requires the CHIME plug-in