SayCheese.com
This site contains sections on Composition, Lighting, and Framing
http://www.saycheese.com/tips&tricks/toc_tips&tricks.asp

Smartdraw.com
This site contains sections on the Rule of Thirds, Zoom, Angles,
Frames, Backgrounds, Mergers
http://www.smartdraw.com/resources/centers/photo/takingpictures.htm

psppower.com
This site contains sections on Lighting, Rule of Thirds, Angles,
Background, Silhouette, Frames, Crop, Depth of Field, Geometry
http://www.psppower.com/2001july/betterphotos.htm

Fodors.com
This site contains sections on Getting Ready, Lighting,
Vacation Shots, Elements, Techniques, People, Composition
http://www.fodors.com/focus/

Kodak.com
This site contains sections on Simplicity, Rule of Thirds,
Lines, Balance, Framing, Mergers
http://www.kodak.com/global/en/consumer/education/programs/composition/photoProgramCompMain.shtml