[NTG-context] How to learn context?

Hi, I am a C++ programmer by profession. Typesetting is my hobby. I used to use LaTeX and Groff with ms macro package. Then I found ConTeXt and I find pdfs created mostly by Hans Hagen awesome. How to learn ConTeXt so that I can create documents of similar complexity. As a programmer I find most of the information with google when I face problem with LaTeX. But for ConTeXt I find very little information. All I know is wiki.contextgarden.net and manuals written by Hans. -- Best regards, Shiv Shankar Dayal