I've started to increase the number of tutorials that we're publishing on our blog. Some recent ones include 3D Scanning using free tools, exporting OpenStreetMap models to Sketchfab and how to add a 'sparkle' effect to your scene. You can access the complete list of tutorials here or through the Blog > Tutorials menu at the top of the page.
If you have a request for a tutorial, or if you're interested in contributing one, please let me know! I'm aiming to publish one a week and I know I'll need some help with that