Depends, the Arch wiki is great, there is/was the German ubuntuusers.de wiki and of course Wikipedia, but none of these are designed to teach you the basics, th

Depends, the Arch wiki is great, there is/was the German ubuntuusers.de wiki and of course Wikipedia, but none of these are designed to teach you the basics, they are references. By contrast, for tutorials the state of wikis is quite often tutorial 1-3 is great and the rest just missing.