Light and Optics

Cool Cosmos - Offers lessons and activities for infrared light. Also, includes has online tutorials, games and graphic galleries that related to this topic.
http://coolcosmos.ipac.caltech.edu/

How Stuff Works: Light - Seven-segment detailed explanation uses drawings and animations to show how light works and how photons are generated, with many related links.
http://www.howstuffworks.com/light.htm

Optical Fibres Project - How optical fibers work, and information on reflection, refraction, Snell's Law, total internal reflection and critical angles.
http://physix_jun.tripod.com/

History of Optics - Timeline of optics-related historical moments.
http://members.aol.com/WSRNet/D1/hist.htm

Tux Teaches Photonics - A collection of information, lessons and quizzes about photonics, taught by Tux.
http://www.photonics.150m.com

Polarized Light - Fascinating facts about polarized light, from rainbows to beetles, from Viking navigation to LCD displays. Myths and truth about polarized sunglasses. Also a shop with polarized-only items.
http://www.polarization.com/

Optics for Kids - An overview of the basics of optics suitable for elementary school children. Also discusses careers in science and engineering.
http://www.opticalres.com/kidoptx_f.html

Fraunhofer Lines - Prominent lines in the spectrum of the sun are shown, together with their corresponding wavelengths.
http://www.harmsy.freeuk.com/fraunhofer.html

Molecular Expressions: Images from the Microscope - Features hundreds of photomicrographs (photographs through the microscope) of everything from superconductors and high-tech materials to ice cream and beer. Also includes tutorials about microscopy and optics.
http://micro.magnet.fsu.edu/

Oatmeal Box Pinhole Photography - Photo gallery plus directions to make a pinhole camera, take pictures and develop them. Also, links to other pinhole camera sites.
http://users.rcn.com/stewoody/

Moiré Phenomenon - A book and a downloadable moire demonstration kit for printing on transparencies.
http://diwww.epfl.ch/w3lsp/books/moire/index.html

WebTOP - A 3D interactive computer graphics system that instructors can use to help teach optics, and that students can use to simulate and visualize optical phenomena to help them learn about optics.
http://webtop.msstate.edu/

Reflections In Choppy Water - Why does light reflecting off a lake or ocean appear to be "smeared" into a long strip?.
http://www.stanford.edu/~boas/science/water_reflection/

Scanning Electron Microscopy (SEM) - Learn about the scanning electron microscope and its uses.
http://www.mos.org/sln/SEM/

Optics Exercises and Tutorial - (Univ of Florida). A sample electronic lecture or worksheet.
http://www.phys.ufl.edu/~selman/Demo1.html