Important Concepts from Projective Geometry
Webtext by Paul Beardsley.

Projective Geometry
Rudolf Steiner's approach.

Lecture Notes on Projective Geometry
By Balázs Csikós. Budapest Semesters in Mathematics. In DVI format.

An Introduction to Projective Geometry (for Computer Vision)
A monograph aiming to provide a readable introduction to the field of projective geometry and a handy reference for some of the more important equations. HTML, PS or PDF versions.

Projective Geometry Resources
Part of the Math Forum.

Wilson Stothers' Cabri and Conics Pages
A site devoted to (mainly projective geometry) illustrated by Cabri II and CabriJava.

Projective Geometry for Multiple View Analysis
A new framework for studying the problems of camera calibration, motion determination, and 3D structure reconstruction in the most general case of totally uncalibrated views.

MathWorld
Index to articles on Projective Geometry.

Linear Systems of Conics
Graphics and formulae for systems of curves defined by linear combinations of quadratic equations.