The tutorial page is now structured with a division between tutorials concerning OpenEarth in general, Data, wiki tutorials and tutorials on the use of the OpenEarthTools.
Tutorials on the use of OpenEarthTools are directly retrieved from the OpenEarthTools repository. Just commit any change to an existing tutorial or create a new one and regenerate the tutorial overview and it will be visible on the wiki pages. A tutorial (of course...) on how to make tutorials is being created at this moment and will be available soon.