These websites provide free touch typing skills practice.
This site has a brightly coloured animated background which is attractive to children and shows which finger to use on the on-screen keyboard display. There are 12 lessons to complete.
Part of BBC Bitesize, this site has a cartoon voiceover which is motivational for some younger learners. Some of the lessons are quite long but it is nicely presented.
Doorway Online's Text Type 3 is a structured keyboard skills programme with a clear, no fuss background. There are colour options for learners with visual impairments.
A workbook is available to keep track of progress.
Doorway Online also has a one handed touch typing version which you can download for Windows PCs here. This may be useful for users with limited fine motor skills.
Tux Typing is a free arcade style game to practise recall of key positions (so useful to boost typing speed after completing a touch typing programme). You can also add your own words so it can be used to practise spelling. There are different difficulty settings and game types.
Tux Typing is a Windows program that you download and install on your PC or laptop. You can download it here.