FilerPro and EasyView
David Pilling's software, including SparkFS, ArcFax fax modem software, TWAIN drivers, and ImageMaster.
Interesting site with many tools for RISC OS, some commercial, some free.
Some great utilities, including Black Hole II, Timeless and HideIbar
An Entertaining site with Desktop Icons, Hermetic Font, Mouse Off module, Magnifier-Pointer-Info&Mouse-Setter, Playing cards, ArcScan Files, TumbleWeed (SlideShow & Tumble)
RISC OS 4 configuration plug-in. Allows setting of time zone.
A collection of utilities, mainly HTML related.
Impression, and a HiRES screen grabber.
IconizBar - a Desktop Iconiser to replace the pinboards iconise function.