Richard Torrens is currently working on a new manual for StrongED in HTML. Progress so far can be seen here (broken link).
Any help with writing sections of this new manual would be appreciated; anyone interested should contact Richard.
Below are links to a couple of articles about StrongED written for the RISCOS-Blog website by Gavin Wraith. That website is now gone so with Gavin's permission copies of the articles have been placed here.
Note that these are quick conversions from the original WordPress pages to plain HTML, not perfect but readable.
Experiments with StrongED - 1
Experiments with StrongED - 2