http://www.morguefile.com/ This site has tons of reference photos that are free and open to the public. It's purpose is to provide free high resolution reference material to instructors, artists, etc.
It also contains lesson on various photography aspects such as aperture and speed, lenses, etc. Would be great for a photography class, or even a web design class.
It also contains lesson on various photography aspects such as aperture and speed, lenses, etc. Would be great for a photography class, or even a web design class.