Tools

Specific Subjects

Mark IV Introduction
- and Running Mark IV in TeX Live (2013)
Modules (LaTeX users call it "packages", DTP users "plug-ins")
PDF/X compatible documents (Mark IV only) and PDF Boxes
Visual Debugging,shows the nasty details of your code: to understand and tweak ConTeXt typesetting.

Remaining from The ConTeXt Way

This Way - My Way (official docs, see http://www.pragma-ade.com/show-mag-1.htm )
Goodies nice little things (why I love ConTeXt)

From LaTeX to ConTeXt: Particular tricks that are useful for moving from LaTeX to ConTeXt.
HTML and ConTeXt: Collaborative HTML document preparation using Wiki and its conversion to ConTeXt using Ruby.
Word-to-LaTeX/ConTeXt script
Version Control: Getting version control specific information in ConTeXt
TeX and pdfeTeX: Non-ConTeXt specific page about TeX and pdfeTeX
Posting on arxiv.org: How to submit ConTeXt documents to http://arxiv.org/, the worldwide, heavily used physics (and now mathematics and computer science) open-access preprint server
Guide to ConTeXt Mark IV documentation: A detailed overview of all the available documentation for Mark IV, with comments
Write to an external document during ConTeXt processing (like LaTeX Filecontents environnement ?).
Running ConTeXt without a shell
Run scripts with bash
Run in parallel
A Simple Spellchecker embedded
A page dedicated to starttexdefinition
Purge auxiliary files