Development ToolKits and SDKs

ARToolKit - Real-Time marker based tracking toolkit.
DirectX - Microsoft's graphics development kit"
OpenCV - Library of vision programming algorithms
OpenGL - Cross platform 3D graphics library
DART - Designer's Augmented Reality ToolKit
Kanade Lucas Tomasi Feature Tracker - Implementation of a imaged based feature tracker

Photographic Modelling Tools

PFBarn - Part of the Pixel Farm's collection of commercial modelling and tracking tools
ImageModeler - Commercial image based modelling tool from RealViz
Canoma - Discontinued photographic modelling application

Internet Resources

Vincent Lepetit - Stable model based tracking
Paul Debevec - Photographics modelling and rendering
Mubarak Shah - Fundamentals of Computer Vision
DIVE - Distributed Interactive Virtual Environment
CVOnline - On-line compendium of computer vision
Marc Pollefeys - Visual 3D modeling from images
Augmented Reality Techniqual Review
Numerical Recipes - Online mathematical C programming reference
OpenGL Programming Guide - 'The Red Book'
CoderSource.net - Online C++ programming reference

Please contact me to add to this list.