www.ewellobservatory.com/bestpractices/
You will need broadband to view this but i found it a brilliant presentation, its broken up into different sections. Just a pity you cant download a better quality version but for anyone who likes astrophotography its worth looking at.
Brief description.
"An in-depth look into how to obtain the best raw data from your imaging system. This presentation will explore how to use stellar profiles to measure, diagnose and improve imaging performance. Topics include collimation, polar alignment, flexure, periodic error management, advanced auto guiding techniques, focusing, dithering and automation."
  