PHP users have the PHP.net docs
Ruby users have Ruby-Doc.org
Python users have docs.python.org
jQuery users have docs.jquery.com
All are considered go-to references when working within those environments.
But where's 'The Manual' for web designers and developers working with HTML, CSS, and (vanilla) JavaScript? What online, free, up-to-date, reliable, searchable, user-editable documentation should webmasters be using and referencing in their day-to-day work?
Update: I should have said that I'm aware of the W3C's Specifications and of the ECMAScript spec, but feel that they are better suited to browser vendors than they are to webmasters. From the HTML5 specification intro:
"...in places it sacrifices clarity for precision, and brevity for completeness..."
So, to rephrase my original question: what clear, quick online references are available for HTML, CSS, and JavaScript?