There is a lot of very useful technical documentation for RISC OS developers on the riscos.info website
This includes a large number of tutorials in StrongHelp format. We are pleased to report that there are now revised and expanded versions of the manuals for OS (3.40), InetSocket (1.10), and C Library (0.09)
Together with the Wimp, InetSWIs, VDU, MiscSWIs, and Toolbox manuals these form part of the core set of StrongHelp manuals for the shorthand guide to RISC OS programming.
If you spot any mistakes or omissions, the maintainers would love to have your feedback. You can help by filling in any missing pages. Just Menu click on the respective page in StrongHelp and choose "Edit page" which will open it in your text editor. Save the changes and send the manual back to the moderator (whose contact details are on the 'Contributors' page in each respective manual).