Deep Zoom Step-by-step Guide

Blog post and C9 video by Dave Isbitski, with PPT and source code:

blogs.msdn.com/davedev/archive/2008/03/16/creating-amazing-user-experiences-on-the-microsoft-platform-available-for-download-now.aspx

https://channel9.msdn.com/Showpost.aspx?postid=390395