Georgia State University
Georgia State University: Hyper Physics: Mirror Instruments
This site from Georgia State University discusses the means by which mirrors and lenses are combined to produce an optical instrument which accomplishes a specific purpose. Good illustrations.
Georgia State University
Georgia State University: Hyper Physics: Mirrors in Imaging
A discussion from Georgia State University of different types of mirrors and the images which they create. Discusses different instruments which use mirrors to produce images.
Khan Academy
Khan Academy: Objects in the Mirror Are...' Actually Images in the Mirror
This article from Khan Academy provides information about mirrors. This information is intended for the Class 12 Physics Course (India).
Georgia State University
Georgia State University: Hyper Physics: Ray Diagrams for Mirrors
Provides a discussion of curved mirrors and ray diagrams. Shows and explains the process of drawing a ray diagram to determine the image location, size, and orientation.