A History of Light and Lighting by Bill Williams
This site by Bill Williams is a very broad view of the history of light and lighting, starting with the birth of the sun over 4 billion years ago and including references to optics, stage lighting, various types of lamps, and key people in the history of light and lighting.
Molecular Expressions: Light and Color
This site is part of "Molecular Expressions Microscopy Primer" and is at a substantially higher grade level than this site. But it's worth a look for the excellent explanations, graphics, and some interactive Java tutorials on refraction and reflection. It includes details on many subjects only briefly mentioned here, including diffraction, polarization, and interference. A fantastic Web site! There is also a fantastic activity guide on optics for teachers.
The Official Optics Discovery Kit (OSA)
Materials (lenses, filters, a hologram, optical fiber, diffraction grating, etc.) for various simple experiments with optics. Includes instruction booklet. Multi-kit classroom packages are also available.
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Laser Tech Online
Laser Tech Online contains a directory of links to general optics tutorials, classroom demonstrations, and many more helpful optics links.