Cloudy Night article on how to do guiding
What manual guiding is, the differences between a guidescope and an off-axis guider, how to mount and use them
Excellent explanation of how much focal length does the guider need to be
Seeing measurement methods
Detailed analysis for problems faced using PHD
Astrophotography Techniques by Jerry Lodriguss
Very detailed paper on autoguiding with a webcam for astrophotography
An overview of the entire guiding system.
Basic Concepts and a Description of the Equipment Used for AP
How to deal with differential flexure
Comparison of Guidescope, off-axis guiding and on-axis guiding
Pros and cons of using guidescope
Learning about the tricky art of autoguiding using a CCD autoguider with an SCT
Uncle Rod on why guiding is a must!